Using OSX but is it Gimp 2.8 or Gimp 2.10?
Your animations only came through here as single layers, however combining an animation with a background, several scripts / plugins that might assist.
This one is easy: http://chiselapp.com/user/saulgoode/repo...combine-bg
goes in your user scripts folder, wherever that is in OSX
a little video demo. https://youtu.be/qJXKMTjZ434 about 3 minutes. everyone finished with this - gone.
Your animations only came through here as single layers, however combining an animation with a background, several scripts / plugins that might assist.
This one is easy: http://chiselapp.com/user/saulgoode/repo...combine-bg
goes in your user scripts folder, wherever that is in OSX