Failed to load animation with sanitized ID. Animation failed to load

The animations listed are owned by the group. I own the group
Happened only once in studio
Tried changing the animation id to be the following format: https://www.roblox.com/asset/?id=idhere
It is inconsistent and pretty much impossible to reproduce
This is breaking my game because animation events are not firing because the animation won’t load

I believe this is a rather old Roblox bug (happens pretty much constantly in Team Create), but your animations should work in production.

If not, you should probably file a bug report if there isn’t already one.