Wait for an answer from some who really knows what’s going on there. But, here’s a do-over tactic that often works:
- Create a duplicate of your set onto, say, your desktop.
- In Roon, delete the entire set.
3.In your OS, delete/remove the set’s folder. (Roon deletes track files only. This step deletes all the rest and the folder.) - In Roon/Settings/Library, select Clean Up Library.
- With your favorite tagger, open the duplicate folder set and confirm that track and discs numbers are correctly tagged, among other things.
- Move your copied set back to the watch folder.
PS: while I was writing this, you posted your failed attempt at WORK and PART edits. If you’re in need of cold comfort (but no solutions), read this: Please Interpret This Metadata Potential Match
I feel your pain. Best wishes