Noticing when trying to upload a new avatar, occasionally the avatar would be the red prefabbed character that means a character will not load.

When reuploading avatar on the same blueprint ID, it is only overwriting client side majority of the time and other people can't see the changed/updated avatar. When checking the avatar manager in the VRChatSDK the avatar has no image. Can fix by detaching and uploading with new blueprint id or getting lucky with reuploading on same blueprint id until it works.