Unanchor breaks models

When I try to unanchor this rig it breaks. Any ideas?
robloxapp-20221027-1412528.wmv (1.1 MB)

well… most likely you moving it like that caused something to break. what are you trying to do exactly?

I’m trying to animate this model but it’s anchored and I need to unanchor it but it breaks

is it a freemodel? there’s probably something wrong with it