No Source Set and Image Size for duplicated images

I like this plugin and how it integrates with the Multisite Global Media plugin. I am just with one problem. When you copy a Gutenberg post with images, all the images have no option anymore to select the image size, and in the output the source set is not being rendered, just as there would be only one image size existing. If I replace with a different image, things are working fine. That is a pain in the neck. Is there any way to resolve that?