It happens to me only when I summon my merchant or banker. When I summon those, the companion doesn't automatically re-appear like the non combat pet. I have to re-summon my companion manually.

They sometimes disappear right before I engage world bosses

Not delves, not dungeons, damn world bosses when I need Mirri most!


Might have to do with world bosses on islands surrounded by water.

Sometimes I wish my companion would disappear.

But I have not had this happen (yet).

They don’t swim with you, and will go around water to catch up with you on the other side.

Other than that, I’ve only had them disappear when riding at top speed. It’s as if they can’t keep up.

Have had this happen as well. It seems to be primarily due to some sort of pathing bug introduced in last update.

Last week I was doing a main story quest with Bastian on an alt; we were indoors and he just suddenly stopped following me upstairs. I re-summoned him and repeated the path about 5 times just to see where the de-sync was exactly. The second we neared the midway landing point on the stairs he would consistently vanish.

This happens to me all the time with my Bear and now Companion. I can be moving across the zone and hit a glitchy area and they just unsummon. I got use to it with the Bear but now Companion also.

Most of the time I'm not fighting, only rarely if I'm questing or fighting they both just unsummon.

It happens in Wayrest Sewers when you go up the ramp or stairs and then through a curvy corridor where there's a wooden platform at the end (against the wall of the next room), and you have to fight your way across the platform and enter another curvy corridor to reach the next area of the dungeon. Bastian disappears while you're on the platform, as though the game realizes that you aren't on the "ground" but are "elevated," and doesn't reappear until you enter either of the stone corridors.

There is a very consistent spot I can replicate every time in Craglorn near the Bangkorai gate. As soon as you cross a certain spot on the road Mirri disappears and you have to call her back

I had this happen with Bastian today.

At risk of being naughty for necro'ing a topic, but my companions all vanish in Hall of the Dead in Windhelm, and this topic was the first result when searching for "eso companion disappears in dungeon", so far I've had it happening to Bastian, Ember and Isobel, all roughly between the first group of ice wraiths and first group of skeletons when you head towards Reynir the Destroyer. I can resummon them without a problem, but it's just odd that they all just disappear at that specific spot.