Physbones Posing No Longer Works on Quest

It’s hardly mentioned anywhere, but an unknown update made it impossible for me to pose physbones on Quest, on anyone or myself. It’s not just my avatar’s settings: I uploaded an avatar months ago that I posed all the time for fun, then just recently I put on the same Avatar (haven’t updated it in ages) and poof, no longer poseable. According to one Discord comment, this occurred starting with the Hand Tracking update, but I myself cannot say exactly which update it happened. I have already tried reinstalling the game.

(Additional tests: PC users can pose my avatar’s physbones and I can release the pose via grab/release. I still cannot pose anything myself.)