I JUST fixed mine after trying everything!
my home popup screen was completely blank, and if I tried to create a new document in the toolbar, nothing would happen.
i tried uninstalling/reinstalling, downloading older versions, changing the preferences to disable the auto home screen, etc.
I then saw a post saying to go to the "Macintosh HD/Library/Application Support/Adobe/UXP" folder on mac or the "C:\Program Files\Common Files\Adobe\UXP" folder on windows by navigating but i had to do
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