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What are you doing for SSL?
Did you follow the directions to the letter for the 14.0v2 update as outlined:
I have not done anything with SSL.
Yes, I followed the directions outline on the webpage. At the time I even completely uninstalled FMS and reinstalled, then updated.
I've never had the issue myself and haven't found an explanation for the few times it's popped up. It seems to have something to do with the way web publishing interfaces with the server OS. If you've tried all the usual things like using command line to restart the WPE, server and adminserver, then you might be stuck having to try and reinstalling again.
I was afraid of that. Yes, I've done the command line restart with no luck. My next attempt was to try upgrading to v14.0.3 to see if that resolves it.