I have a few sites where this has been causing an issue. For some reason, when the post get’s autosaved, all the buttons disable, but they don’t come back!
Initially what I had to do was inspect the element (publish button) and then remove the disabled class. But that’s annoying, and I can’t tell my clients to do that. So, I found a simple script to disable AutoSave.
How simple right!! Took me like an hour to find that stupid thing =). Hope this helps someone, enjoy!