Okay, that’s good. You’ll re-enable that once the jitter is gone.
It seems like it’s happening on a timer, possibly when the animation loops.
Try setting the ABP on this player’s blueprint to nothing (so it’ll t-pose) then spin it. If it STILL jitters, we know it’s nothing to do with animation.
This is one of those problems where you have to figure out what’s actually going on before you can try to fix it. But hey, progress is progress and we’ve already managed to count out any interpolation issues, so that’s good!