The team has been informed about this. We advise against renaming UXP folders as various other Adobe Apps share this directory, which may result in unexpected behaviors & broken workflows. 
 
Update: Follow the steps here to refresh caches for an essential Creative Cloud component. 
Steps for Windows (Steps for macOS shared below - click 'Jump to reply')
- Quit Photoshop.
 
- Go to C:\Users\useprofilename\appData\roaming\adobe\ccx welcome
  Press Windows + R & type in - %appdata%\Adobe\CCX Welcome  &  
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