Issue with a prefab after FBX update

Hi, I’m having an issue with a prefab in the app. We have an avatar FBX file that contains the body geometry, clothing, and a rig. We created a prefab from this FBX file. Now, we’re trying to add new clothing and have updated the FBX file, so the changes should also be reflected in the prefab we’re using. However, whenever I try to update the FBX file, the prefab breaks. It seems like all the deformations and skinning are wrong (but only in the prefab; the FBX file itself looks normal). I’d appreciate any help with this issue.