That’s weird because it also just uses the built in Aseprite function to load the gif based on file name sequence. I wasn’t aware of any issues related to resizing as it just keeps track of an index as you go.
If you want to add me on discord to send me an example of it happening, my handle there is sprngr (avatar should be a guy with glasses giving a thumbs up) - I can try to look into this and see if I can find a resolution for it.