I’ll make a video of mine since I’m on console. Not like they will do anything about it. At least in a timely fashion.
Welcome to the most common bug in game. I excatly know what you mean. Cuz I have this damn bug all the time in cyro. Causing me die most of the times. There are many threads about this bug but ZoS haven't done anything yet. Here there is a video already recorded by me.
https://www.youtube.com/watch?v=qklxYreNTQo
This is happening to me on the two stamina characters I have played since patch. The drain is not consistent from parse to parse. In some cases I can’t complete the parse due resource loss - others it’s noticeable but I can stretch it out. This issue was noticed while baseline dps testing the previous heavy attack rotations that had no issues with sustain since Morrowind. Now sometimes I can’t kill a 3 million dummy before running dry of resources. I cannot reliably play stamina characters as a result.
I thought I was crazed: it happened with Magicka as well. After a long fight in PvP I finally left combat and watched my bar going up and down for no reason. I was using no skills, but I kept gaining and losing resources with no explaination.
I can confirm the bug but I can't say which is the source
reworked resource tracking algorithm. This means includes adding the ability to track dodge rolls and bashs. As a result now all resouce events that cannot be attributed to a source will be shown as "Unkown". Therefore resource consumption and regeneration is tracked more accurately now. Before those unattributed resource events were ignored. If you see anything suspicious there please let me know.
I wouldnt believe everything CMX says, unless there was indeed sustain overflow bug last patch and this is a fix.
What do I mean? For several months (at least 2 patches), CMX was logging more regen ticks than supposed to. These would show in combat log as appearing very close to other regen ticks (so you would have like 16s regen 17s regen 18s regen where the 17s one is the 'rogue' one).
Now, this 'unknown' drain thing drains exactly the same amount of stamina as one regen tick. And it happens exactly the same number of times rogue regen ticks appear. That means only two things, either these drain ticks are removing regen you arent supposed to get (the rogue ones), or CMX (or even deeper - the information from API) is lying.
At least that is obvious from my own testing, didnt get any parse where unknown would happen more times than rogue ticks.