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I've been periodically going into draft editing for 4 hours now and clicking "save", but I keep seeing this error...

Something is going on.
I was able to modify and save my assets but the system started to attach unwanted
".jpg" and "other" file types to my files, and I am not able to delete them.
...and of course its Saturday, no support...

I understood why it was impossible to publish the project, because of the "save settings" checkmark, the site gave an error, everything is fine now, but this opportunity was useful for me.