This all makes sense – any TIDAL content you add to your library in Roon get synced to your TIDAL account, and vice versa.
Yup, this is the problem.
That makes this easy. Go to the Tracks browser, click Focus > Format > TIDAL
Now you should be looking at all the TIDAL content that was added – you haven’t added anything else right?
Select all, then Edit > Delete.
That should do it. Sorry for the trouble 