Only one save file won't upload builds to gallery

I'm not sure if I should post this here or in bug reports but I've been having this issue for while (probably at least a year). I've only noticed this problem in one of my save files. When I try to upload a build to the gallery (either publicly or just to my library), it seems as if it has successfully uploaded, but when I go to my library the build isn't there. There is no error message of any kind. I don't have any mods or custom content or anything like that. I play on xbox. Is there a way I can fix this without starting over?