Renamed a few files (without changing filepath) and… all went fine
So I renamed a few more but this time… they vanished from Roon
Forced a rescan, cleaned the Library, forced again a rescan to no avail.
Had a look in “Skipped Files” and… all are there marked with a “I/O Failure” error
I am not sure about the error but when I ran into the issue of Roon not adding songs to my library I would have to rename the folder. Once Roon picks up the album I just rename it back. Weird but it works for me.