The animation update has caused this to occur:

The arm on the right will vibrate when moving and especially when shooting.
This only happens with scguns items, other mods like tfmg and the vanilla bow with different animations and vanilla hands enabled (like what I've done for all scguns items) work fine.

This was not an issue in the previous update for 1.20.1, 0.4.0
Messing with FPM settings doesn't fix this, though auto-vanilla-hands is enabled for all since I first installed the mod, and I've been updating the list with added guns since.

Forge 47.3.0, MC 1.20.1, SCGUNS 0.4.1

while sprinting