Suddenly unable to view Subfolders for Stage or Prod instances

I am suddenly unable to view any subfolder contents within the Adobe Campaign Client Console desktop application. Note that the WebUI works fine to view and edit any file, but many of our Workflows do not work when ran from the WebUI so that isn't a possible work-around for this.

What I have tried so far:

• Adjusting permissions - I'm an admin in the system and so I tried adjusting the permissions of folders read/write access - no change.
• Cleared local cache - no change
• Uninstalled / Reinstalled - no change
• Repeated uninstall -> then deleted the Neolane directory in AppData/Roaming/Neolane -> Reinstalled - no change
• Dragging mouse between where subfolders normally display and the display of the last item worked on in that subfolder allows me to slide the view panels left and right when the tree view is showing but I can not drag up or down
• Double clicking or checking the enlarge view icon shwo the subfolder full screen but with no contents
• Checking the content ordering of the subfolder in the parent folder shows no content in the subfolders
• Uninstalled and installed a newer version (8.6.4 to 8.7.4)

Is there some hidden configuration file that I can edit or delete in the desktop application to reset this?