>>386544285
it looks like it puts your body in the AFK pose but doesn't properly cancel all tracking, so your upper body and arms are still tracking. check your action layer and check the tracking control state behaviors there.
you may also want to check all your other controllers. some controllers (especially the "locomotion fix" ones) tend to use state behaviors that are constantly (and i do mean CONSTANTLY) messing with your tracking with state behaviors. if these still run while you're AFK, they will try to restore your tracking while still playing the AFK animation.