I installed Listary on my laptop which has two user profiles. I had to install it for both profiles.
It told me I had to restart my PC to finish the installation so I did.
All of my files were invisible in the file explorer. My desktop background went black because it couldn’t see the pictures in my backgrounds folder.
For anyone else who experiences this issue:
Multiple restarts did not solve the issue until I went into the task manager and restarted the file explorer. Then after another restart everything came back and Listary started working.
Cheers, hope this helps others!