Physbone jittering

Help!
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1

ezgif-4db7cbc6c2b3e5b1Please help. What causes physbones to move like this? This thing happened to every of mine avatars that i uploaded for some reason

2

(1784) Some physbone setups are now jittering locally while moving after update | Voters | VRChat

3

Physbones more jittery and unstable than they used to be | Voters | VRChat