Nothing to do with the index controllers or the plugin, it is indeed a bug with Chaos Physics on the released version of the engine. Bodies that fall asleep don’t wake up again until another simulating body approaches them. You can globally turn off sleeping or lower sleep thresholds on the objects or manually wake them up every time they sleep, however there are other massive physics issues in 5.0.3 to the point where its not worth the effort trying to work around them. I haven’t even tried to port the physics forces to chaos yet as I am unsure if the current behavior is even intended (damping seems to be a factor of 10 stronger than it should be).
Mostly waiting on 5.1 and a hopefully more stable simulation system.
Finger curls should work with the index controllers, in that the full hand tracking transforms are used, curls themselves don’t exist in openXR but the hand tracking extension does function for what it does.
I currently do not suggest using 5.0 for VR until it gets stability and core feature fixes, on the launcher engine version there isn’t actually much of a reason to do so anyway, lumen and nanite do not work for VR in that version anyway.