The animation is not visible unless I remove the humanoid that's inside of the character. I've also already tried reinstalling studio. Could someone please try and see if it's not just me having this problem? Thanks.
https://youtu.be/2B7HEHX2wus?t=44s In the video, the animation worked only when the humanoid wasn't there. When I added a new humanoid after removing the first, the animation stopped.
After loading the animation into the AnimationController, yield until all assets are loaded.
local ContentProvider = game:GetService ("ContentProvider") repeat until wait() and ContentProvider.RequestQueueSize == 0
Hope this helps!