Are you able to share your DxDiag file with us?
This thread was added on July 23, 2021, with posts from Community_Team.
Original Post
https://i.redd.it/g447csk281d71.jpg
I'm also having the same issue. It reverts back to normal after restarting PoE but the T-posing bug always comes back after playing for some time (>30mins). I've posted my DxDiag in the same bug report thread as Tenshouu.
Thanks for that. Is there anything that consistently happens before it reverts?