BUG: Autosave not working on style manager when classes are disabled

Thanks for the report, there is a bug with the editor.load method, which could be currently patched in this way

editor.load(() => {
 const em = editor.getModel();
 em.get('storables').forEach(md => md.postLoad && md.postLoad(em));
});

Actually, if you have used editor.load() only because it doesn't load on start, that because you have to define your custom storage in a plugin, in that way the autoload (true by default) will work correctly (without any temporary patch on your side)

@Davidvlv I'm experiencing the same issue. I believe it's a combination of the avoidInlineStyles: 1 in the config and no class being selected. It seems to work as expected with avoidInlineStyles: 0

I've tried it out, and that setting does stop it from not saving when it should, but it introduces some other issues on our end with how we're using the output later on. We turned on avoidInlineStyles to avoid these issues.