Happens in PVE but also PVP and other activities such as BG, so yes it is an issue.

reported here

https://forums.elderscrollsonline.com/en/discussion/395445/bug-cant-see-your-teammates-in-dungeon#latest

no reply

Added screenshot.

Morgul667 wrote: »

Happens in PVE but also PVP and other activities such as BG, so yes it is an issue.

reported here

https://forums.elderscrollsonline.com/en/discussion/395445/bug-cant-see-your-teammates-in-dungeon#latest

no reply

I rememeber that thread but I couldn't find it (forgto name...) so I opened another one.

Not only in Dungeons, but in BGs too, which is more disturbing

I mean, at least before, the health bar was in the ground. Now it's non-existent. LOL Rezing is SUPER fun when you can't see a health bar OR a person. DPS decreases because you can't rez, before you know it, another person dies and you have to restart the boss fight.

Lightspeedflashb14_ESO wrote: »

What would make you leave the dungeon? Just port to one of them. Ezpz. Makes it so you can see them. Such drama for so little.

And honestly, you do not need to actually see the other players. As long as they interact with the mobs in the dungeon, you would be fine.

Oh, you do need to see the other players, especially if you want to heal or resurrect them. Synergies are often affected by this, too. Interacting with the mobs in the dungeon is not enough, except for a player who remains a solo player regardless of whether their character is in a group.

In my experience, porting to another player's character is meaningless if both characters are already inside the dungeon. It has never resolved a problem, and there is a risk of making the situation worse.

One problem with the "megaserver" is that a player character which ports to another sometimes will not arrive in the same "instance". When that happens, all a player sees is the marker above the head of the other character(s) -- assuming that option is enabled. The usual remedy is for the player who cannot see the characters of the others to log-out to Character Select, then select the same character to play. That should place the character in the same "instance' of the dungeon, and at the same area in the dungeon where the player logged-out. However, re-logging sometimes places their character in the same "instance", but at the start of the dungeon, regardless.

Ordinarily "travel to" another player's character does work when the respective player characters are not inside a delve, dungeon, or trial.* In that case, the character who is teleported arrives at the Wayshrine that is nearest to the other player's location (unless there is an error, and the teleport will either fail or have some weird outcome).

Ordinarily, teleporting also works as expected when a player character who is outside a dungeon "travels to" a player character who is already inside the dungeon. But they will not necessarily be at the same location, i.e., within sight of one another. Usually the character who travels will arrive inside the dungeon near the physical entrance to it. For example, when a replacement player is chosen via the Group tool, their character almost always arrives just inside the entrance to the dungeon, regardless of where any other member(s) of the group are currently located. And I've seen outcomes in which a replacement player's character arrived in a different "instance" of the dungeon, too.

There are other situations when porting your character to another character will place yours in a different "instance". One is the final quest in the Main Quest series, in which the player's character who undertakes the quest can be accompanied only by the Prophet and the other Companions. That is, the quest (among other "solo" quests) cannot be done by a group.

Consequently, when another player's character travels to the one which is engaged in the quest, their character might arrive at the same location (or be able to move to the quester's location from where their character arrives). But they won't be able to see one another, or interact with one another. They can usually communicate via the zone chat channel. At best, each respective player's character might be able to see the outcome of an action by the other player's character.
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* For what it is worth, I have never attempted to have my character "travel to" another player's character while either of our characters were inside the "instance" of a Homestead, a Battleground, or an Arena. The outcome should probably be the same as "travel to" another player character who is inside a delve, dungeon, or trial -- i.e., if it works properly.