Roblox recently broke this by changing how AssetDelivery works, the latest release fixes this Now has animation support!

Hey everyone, I made a cool little roblox plugin + node.js tool that with a couple button clicks, reuploads and replaces all occurrences of asset IDs in your game(images or animations depending on choice)

If you’ve ever wanted to migrate assets in your game to all be under the same group/creator
(a requirement for EditableImage or animations), this should hopefully make that easy

All you have to do is click search to compile a list of instances, then hit run! The backend server will do the downloading, reuploading, and then replacing of all the assets in your game.

It’ll also give assets an “OldID” attribute in case you want to keep it

This is the first thing I’ve ever put on github and I’m not much of a software guy, so hopefully it doesn’t have too many bugs!

A Node.js tool for reuploading and replacing image/animation assets in your roblox games - TylerAtStarboard/AssetReuploader