Only other thing I can suggest at this point Drew is trying to do a complete Adobe cleanup and starting again using the cleaner tool ... I would definately look at installing Fireworks with an offline installer instead of using the Creative Cloud app. You can download an offlline installer from here, read the instructions before downloading, as you need to access this page first and login with your Adobe credentials to set an Adobe cookie before downloading, they are links to official Adobe installers, so safe to use.
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