Moon animator animation not playing on Roblox animation editor

Hello, i am working on a game, and i decided to animate everything myself using moon animator.
When i animate the basic roblox bloc rig, the animation plays perfectly in game, but when it comes to custom rigs with bones, the animation does not play properly in game, some bones do not move.

So I thought the problem was the animator, so when i tried to edit the animation on Roblox’s animation editor, i saw the exact same problem as in game, some bones did not move

. here is a comparison between the 2 animators for the same animation file.

Moon animator :


Roblox animation editor :

I don’t understand why it does this because with roblox bloc rig animations that i edited on moon it worked perfectly. Have any idea on how to fix this ? i just have no clue.

Yeah custom rigs are buggy. Make everyone blocky in game i guess.