if it’s stopping at two seconds or something then here’s a screenshot
as you can see the fire animation makes my right arm vanish
Idle animation…
fire animation 
as you can see there is no literal reason for my arm to be vanishing, yet it still happens, even when I disable every single script in my game!
the keyframes are also the same, so at this point I’m just guessing that Roblox is tweaking with it’s development studio.
every singlular script ecxept for the viewmodel script and gun scripts obviously are DISABLED in my game. I don’t see a keyframe for the right arm that’s any different from the idle animations key frame.