A picture is provided to see the issue.

This issue is affecting different avatars but is a rare case, so far only 2 avatars made by 2 different people has been seen with this issue but seems to be triggered by the same conditions.

Note that the second avatar (not shown here) has no Lights, Particles Systems, Line or Trail Renderers yet still breaks with this manipulation.

This issue was tested on PC only.

When safety settings blocks lights and particles, some avatars seem to get stuck in T pose. When this happens, avatar details also fails to show any information on the avatar in question. This only seems to happen on some specific avatars, but is fully reproducible on those avatars (unfortunately, I've only seen this with private avatars owned by other people, so I can't provide a specific repro avatar).

Output log: https://www.dropbox.com/scl/fi/gs3hwtq3fq6mfbccca5cv/output_log_2024-03-18_20-56-48.zip?rlkey=kcekyx3lkulh3adclt1jzy3l6&dl=0

So, until the latest update, all my avatars were fine, and so were other people's avatars, but after the latest stable update, and even in the latest open beta (1431), avatars of mine, and others, seem to randomly be stuck in a T-Pose with no mouth movement visemes even, depending on the avatar, unless the avatar is fully shown.

I noticed this last night when multiple people told me my avatar is in a T-Pose, and that my mouth didn't move when I was speaking, even though it worked fine for me, so I swapped to an avatar that I hadn't updated in a year, and it was exactly the same despite the fact I hadn't touched the avatar and it worked fine before. I tried swapping from the open beta, which I was on, to the stable release, but that made no difference, the only thing that worked was people forcibly showing my avatar.

This issue happened with another users avatar in the same instance, I and others had to forcibly show their avatar, despite the fact it also hadn't been updated recently, to be able to see them talk and get them out of a T-Pose.

Some of my older avatars are fine, while others, and avatars that aren't mine, are suddenly broken now, so I don't know the exact cause but it seems like the animator and blendshapes just completely break. A user tried enabling and disabling custom animations on me, but that didn't change anything apparently (though i don't have confirmation of this fully, as they just said they did such).

Attached is a picture of an avatar I found doing the same T-Pose issue in a public lobby.

As an extra aside, I also had one or two people say I was doing the biker pose instead of a T-Pose, so I'm unsure which causes which, since it seemed different for other people despite being the same avatar.

avatar stuck in t posing & loading with custom safety level after 2024.1.1p2(1407) update, unless manually select “show avatar”