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PSA: Jubilee Cake DOES NOT stack with other XP bonuses.

Phinix1
Phinix1
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TL/DR:

PLAYERS: Save your normal Scrolls/Ambrosia XP buffs, they DO NOT stack. The XP gain is capped at 100% and you will get NO ADDITIONAL BONUS for consuming these with Cake.

ZOS: Please remove all misleading statements that these stack and issue a public statement that either 1) They do NOT or 2) that you will hotfix the bug (if it is a bug) so people don't buy/waste these normal bonus items.

UPDATE 1: Just FYI, the cake buff is removed any time you die and must be re-applied. Since you can't use Momentos in PVP, if you die in a PVP zone you must leave in order to re-buff.

UPDATE 2: GREAT NEWS! ZOS has confirmed this is a bug and will be rolling out a hotfix today. Not only will XP not stack properly but you will no longer lose the buff when you die, making using the cake in PVP zones practical. Here's all the details:
Hi everyone!

We have an update for you on this issue. Please see our post, here. (Also quoted below.)
Hi everyone,

When we pushed the anniversary event live last night, we discovered that the Jubilee Cake XP buff stacking was not working as we intended. We are currently testing a fix that, once implemented, will allow for the intended XP buff stacking so you can reach a total possible increase of 185%. We plan to roll out this fix tomorrow (4/5). We’ll provide the exact time tomorrow, and notify everyone when the hotfix is complete.

We will also be extending the ESO anniversary event by two days, so it will now end on Tuesday, April 12th at 8PM EDT.

In this post, you’ll find a brief explanation of how XP buff stacking works in ESO, how it is supposed to be working with the Jubilee Cake XP buff versus what is actually happening in-game right now, and what we’re doing to fix the current issue.

How XP Buff Stacking Works in ESO
In ESO, all XP buffs stack with each other, with the exception of Psijic Ambrosia and the Crown Experience Scroll. Not counting the Jubilee Cake, these are the different types of XP buffs currently in the game.
  • Alliance War Keep buff – 5% XP buff (applies only to monster and player-character kills)
  • Crown Experience Scroll – 50% XP buff (does not stack with Psijic Ambrosia)
  • ESO Plus – 10% XP buff
  • Grouping buff – 10% XP buff
  • Psijic Ambrosia – 50% XP buff (does not stack with Crown Experience Scroll)
  • Rings of Mara buff – 10% XP buff
  • Exploration Trait XP buff – Varies depending on how many armor pieces have the Trait (applies only to exploration XP)
It is currently possible to stack XP buffs for a total possible increase of 85% for most types of content. There is normally a cap in place that prevents any event (a quest completion, a monster kill, etc.) from granting more than 10% of your total level value. For the anniversary event, that cap was raised from 10% to 30%.

How the Jubilee Cake XP Buff Works
The Jubilee Cake buff for the ESO anniversary event should be stacking with the following XP buffs:
  • Alliance War Keep buff
  • Crown Experience Scroll OR Psijic Ambrosia
  • ESO Plus
  • Grouping buff
  • Rings of Mara buff
  • Exploration Trait XP buff
With the Jubilee Cake buff, you should be getting an additional 100% plus the total possible 85% detailed above, for a grand total of 185%* as the highest possible XP buff increase during the anniversary event. That is not currently happening, though, and the percentage is capping out at 100%. We’re looking into why, as that is not intended.

*Please note: The Alliance War Keep XP buff applies only to monster and player-character kills, and the Exploration Trait XP buff applies only to exploration XP

As part of this hotfix, we will also be changing the Jubilee Cake buff so that it is not removed upon player-character death—this will make it a bit more useful in Cyrodiil and Imperial City.

Thank you all for your patience and dedication—now let’s eat some cake!

Thanks!

Here's the evidence:


Test of 100% Jubilee Cake and 50% Scroll/Ambrosia XP bonus stacking.
  • Done WITHOUT ESO Plus and with NO Enlightenment (base XP values only).
  • Values checked using ZOS's own loot tracker and XP numbers (no addons).
  • Values confirmed using actual XP totals in-game (see video).
  • Calculated using formula for percent change as seen HERE.

Test 1: No XP bonus.
  • 285,226 (starting XP) + 828 (mob XP) = 286,054
  • 828 = 0% XP bonus -> CORRECT

3lvyDbq.jpg


Test 2: Ambrosia/Scroll 50% XP bonus only.
  • 286,054 (starting XP) + 1242 (mob XP) = 287,296
  • 1242 = 50% XP bonus -> CORRECT

8KRFuSP.jpg


Test 3: Ambrosia/Scroll 50% AND Jubilee Cake 100% XP bonus.
  • 287,296 (starting XP) + 1656 (mob XP) = 288,952
  • 1656 = 100% XP bonus -> WRONG! Should be 2070 or 150%.

WiRH7pb.jpg


Complete video from test (showing actual XP numbers):

http://www.youtube.com/watch?v=y8H077kLilk


CONCLUSION:

The bonus DOES NOT STACK AS ADVERTISED.

ZOS, is this a bug?!?

If so it may be that you failed to check for existing XP bonus when applying the cake and are overwriting them instead of adding. Test was done using the cake AFTER using a 50% bonus.

Will test again using cake first...

  • Phinix1
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    2nd test conducted...

    CONFIRMED. It DOES NOT matter what order you apply the buffs, they DO NOT STACK.

    Test 1: Jubilee Cake 100% XP bonus only.
    • 1656 mob XP (base is 824)
    • 1656 = 100% XP bonus -> CORRECT

    CHZ90c8.jpg


    Test 2: Jubilee Cake 100% AND Ambrosia/Scroll 50% XP bonus.
    • 1656 mob XP (base is 824)
    • 1656 = 100% XP bonus -> WRONG! Should be 2070 or 150%.
    • NO GAIN FROM ADDED AMBROSIA/SCROLL BUFF.

    dw08yHr.jpg


    Video:

    http://www.youtube.com/watch?v=0RZ_U-4evPo


    If you apply the cake buff first and check your XP, then apply a scroll/ambrosia on top of it, you will see (as in these screenshots and video) that the number DOES NOT CHANGE AT ALL.

    XP gain is capped at 100%.

    These items DO NOT STACK AS ADVERTIZED.

    I am hoping it is a bug, and that we get credited for the time it didn't work, as people spending real money on XP scrolls are wasting them.
    Edited by Phinix1 on April 4, 2016 12:48PM
  • Phinix1
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    @ZOS_GinaBruno

    Good morning! Looks to be about 7:30 EST on a Monday. You're probably crawling into work about now, fumbling for that first cup of sunshine...

    Guess now is as good a time as any to ping you with this. ;)

  • MornaBaine
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    While Gina and crew have my sympathy for what they are about to walk into... I (and I'm sure MANY others) are mightily annoyed about this and hope it is fixed STAT! Thank you @Phinix1 for the cleanest and most cogent thread on the problem yet. Hopefully they look at yours first and get right to work!
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  • Shader_Shibes
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    54140699.jpg
  • Elsonso
    Elsonso
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    Phinix1 wrote: »
    Test of 100% Jubilee Cake and 50% Scroll/Ambrosia XP bonus stacking.
    • Done WITHOUT ESO Plus and with NO Enlightenment (base XP values only).
    • Values checked using ZOS's own loot tracker and XP numbers (no addons).
    • Calculated using formula for percent change as seen HERE.

    Just a comment. This is not how you measure XP.

    You use the XP value from the character sheet, not any loot trackers or addons, until you have verified that the loot tracker is 100% accurate.

    You check your XP. You kill a mob. You check your XP and do the math.

    You change your XP boost, and repeat the above with the same mob after it has respawned. You always use the same mob, or the same cluster of mobs.
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  • Alcast
    Alcast
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    @ZOS_GinaBruno @ZOS_RichLambert

    Once you eat the cake your other EXP bonus do not work including:
    Grp EXP buff
    Scroll EXP buff
    Alliance War Keep Exp buff
    ESO + Exp buff

    So instead of a 170-185% (Depending on Cyrodiil keeps) you are left with only 100% extra exp boost.

    So in Total you should get a 270-285% exp boost with the normal 100% exp. Now we only get 170-185%

    :(
    Edited by Alcast on April 4, 2016 12:46PM
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  • Phinix1
    Phinix1
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    Phinix1 wrote: »
    Test of 100% Jubilee Cake and 50% Scroll/Ambrosia XP bonus stacking.
    • Done WITHOUT ESO Plus and with NO Enlightenment (base XP values only).
    • Values checked using ZOS's own loot tracker and XP numbers (no addons).
    • Calculated using formula for percent change as seen HERE.

    Just a comment. This is not how you measure XP.

    You use the XP value from the character sheet, not any loot trackers or addons, until you have verified that the loot tracker is 100% accurate.

    You check your XP. You kill a mob. You check your XP and do the math.

    You change your XP boost, and repeat the above with the same mob after it has respawned. You always use the same mob, or the same cluster of mobs.

    If you watch the video, you see that is what I was doing. It is difficult to cram all that into a manageable number of screenshots, which is why I included the video.

    However, the numbers you see are ZOS's own "loot tracker" from the game itself. NOT an addon, as I said in the OP. Therefore, even though I checked the actual numbers as well, you SHOULD be able to go by these values.

    If you watch the video and compare, they are indeed accurate to what the actual XP numbers are doing.

    Edited by Phinix1 on April 4, 2016 12:38PM
  • MerkzM8
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    Yea, this really sucks.
    "What is better, to be born good, or to overcome your evil nature through great effort?" - Paarthurnax
  • MerkzM8
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    Although it's still good 100% XP increase Is amazing, but if they are going to advertise it as stacking, then it should.
    "What is better, to be born good, or to overcome your evil nature through great effort?" - Paarthurnax
  • The_Lex
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    MerkzM8 wrote: »
    Although it's still good 100% XP increase Is amazing, but if they are going to advertise it as stacking, then it should.

    Especially for people who bought Crown XP scrolls and/or mats for ambrosia based on what they said.

  • MerkzM8
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    MerkzM8 wrote: »
    Although it's still good 100% XP increase Is amazing, but if they are going to advertise it as stacking, then it should.

    Especially for people who bought Crown XP scrolls and/or mats for ambrosia based on what they said.

    I couldn't agree more. Hopefully they fix it soon
    Edited by MerkzM8 on April 4, 2016 12:52PM
    "What is better, to be born good, or to overcome your evil nature through great effort?" - Paarthurnax
  • Phinix1
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    CONFIRMED. It DOES NOT matter what order you apply the buffs, they DO NOT STACK.

    (Updated 2nd post with screenshots/video of 2nd test).

    It seems XP bonus is capped at 100%. It would be nice to get a ZOS response clarifying if it was an error that they claimed they would stack, or if it is a bug that they do not.

    Either way, people buying scrolls to double-boost themselves are wasting the money at present, based on the understand that these would stack when they clearly do not.

    At the very least ZOS should remove the statements that they stack and clarify so no one else burns their normal XP boosts.

    The cake is indeed appreciated.
  • Elsonso
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    Phinix1 wrote: »
    If you watch the video, you see that is what I was doing. It is difficult to cram all that into a manageable number of screenshots, which is why I included the video.

    However, the numbers you see are ZOS's own "loot tracker" from the game itself. NOT an addon, as I said in the OP. Therefore, even though I checked the actual numbers as well, you SHOULD be able to go by these values.

    If you watch the video and compare, they are indeed accurate to what the actual XP numbers are doing.

    Yeah, the video is unavailable to me at this time, so I have not watched it.

    The reason that I say to ignore the loot tracker is that it is a little silly to test the XP from the cake, assuming there might be a coding problem with the cake, while simultaneously assuming that the coding of the built-in loot tracker is always right.

    It is nice to hear that the built-in XP tracker has some amount of accuracy, though.

    Carry on...
    Edited by Elsonso on April 4, 2016 12:52PM
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  • JamilaRaj
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    Alcast wrote: »
    ESO + Exp buff

    *gasps*
    That is outrageous!!! Not even P2W is working properly?
  • Phinix1
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    The reason that I say to ignore the loot tracker is that it is a little silly to test the XP from the cake, assuming there might be a coding problem with the cake, while simultaneously assuming that the coding of the built-in loot tracker is always right. We have to assume that the addition of the XP is always right, mainly because there is no way to account for this without knowing in advance the exact XP that should have been earned.

    It is nice to hear that the built-in XP tracker has some amount of accuracy, though.

    Carry on...

    Of course, you would be assuming the coding of the actual XP number isn't bugged... :p

    In my experience however, the loot numbers are MORE reliable than the actual XP numbers. Something with the way they coded the CP system is incredible unreliable here.

    For example, I just killed a Mammoth for 828 XP. However, the actual XP numbers showed I had gained over 3000 XP. That is with no Enlightenment buff.

    So yeah.

    Either way, the two clearly do NOT stack, and statements that they do should be removed. Either that or they should fix the bug.

    Edited by Phinix1 on April 4, 2016 1:07PM
  • Erdmanski
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    Well I guess I wasted about 6 xp potions last night. If I would've paid close attention to the numbers I probably would've noticed something wasn't right.

    But I guess it is my fault for assuming ZOS did something right.
  • BackFreckle
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    I really hope we can see a reply here from a green on the issue
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  • XANTITHESISX
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    MerkzM8 wrote: »
    Although it's still good 100% XP increase Is amazing, but if they are going to advertise it as stacking, then it should.

    Especially for people who bought Crown XP scrolls and/or mats for ambrosia based on what they said.

    Yes.. this is a FAIL.... I am glad I only wasted 1 Ambrosia instead of an XP scroll.
    Edited by XANTITHESISX on April 4, 2016 1:15PM
  • Voxicity
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    In this thread: people complaining about free stuff
  • SlayerSyrena
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    Then, apparently, I've already wasted two scrolls on this ...
    Edited by SlayerSyrena on April 4, 2016 1:26PM
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  • The_Lex
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    Then, apparently, I've already wasted two scrolls on this ...

    As did I :s
  • rotaugen454
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    Vox wrote: »
    In this thread: people complaining about free stuff

    I don't think the big complaint is the free XP boost. The complaint is that you can use real money items like crown store XP scrolls and it is wasted.
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  • The_Lex
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    Vox wrote: »
    In this thread: people complaining about free stuff

    I don't think the big complaint is the free XP boost. The complaint is that you can use real money items like crown store XP scrolls and it is wasted.

    This ^^

  • SlayerSyrena
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    Vox wrote: »
    In this thread: people complaining about free stuff

    No, we're concerned about spending irl money when told scrolls would stack with the cake.

    That being said, I'm very excited about CAKE WEEK! :smiley: I'm an alt-aholic and that's why I bought the scrolls, to make the most of this (brief) boost to leveling! (Soooo many alts ...)

    PC/NA, Level 50 * Current Champion Points: 1600+
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  • Voxicity
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    Vox wrote: »
    In this thread: people complaining about free stuff

    No, we're concerned about spending irl money when told scrolls would stack with the cake.

    That being said, I'm very excited about CAKE WEEK! :smiley: I'm an alt-aholic and that's why I bought the scrolls, to make the most of this (brief) boost to leveling! (Soooo many alts ...)

    Fair enough. It was mostly satire anyway.
  • Elsonso
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    I really hope we can see a reply here from a green on the issue

    Just FYI.. in another thread...
    Hey guys, just want you to know that we're tracking down answers to all your questions this morning, and will let you know what's going on as soon as we can today.
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  • vyndral13preub18_ESO
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    I really hope we can see a reply here from a green on the issue

    Just FYI.. in another thread...
    Hey guys, just want you to know that we're tracking down answers to all your questions this morning, and will let you know what's going on as soon as we can today.

    Thank ya kindly.
  • rotaugen454
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    I'm not overly upset. I just lose the 10% ESO+ bonus (or the cake is giving me 90%). I end up with more XP regardless. I almost starting using my XP potions, and I'm glad I didn't. If they hotfix this, then I'll test it. I just feel bad for anyone who wasted a real money item, or even the Perfect Roe to make their own potions. I am hopeful they'll have this fixed sooooon (as Gina would say), and might even extend the bonus for the amount of time it took to fix. Either way, I'm happily grinding CP while chasing the Grand Master Harvesting Crafter achievement.
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  • D0ntevenL1ft
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    OP the testing is much appreciated. Now It's finally confirmed I wasted 2 scrolls on 2 diff accounts to see if anything ZOS indeed lied on their advertisement. Thanks for essentially stealing my money ZOS.. I wonder what life is like when you don't suffer from any consequences?
  • Ashtaris
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    Yep, wasted a XP scroll myself on this. It was really nice for ZOS to release the Anniversary Cake, but at least it should work as advertised.
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