On my homepage where it tells me the number of artists / albums etc it says I have 398 albums, however when I click on the albums tab it takes me to ‘My Music’ and is shown as only having 251 albums.
Anyone know what may have happened to the other 147 albums?
The number of albums on your homepage includes albums that Roon automatically detects as duplicates. However, the album browser excludes those albums if you have “Show hidden tracks and albums” enabled in Settings > General.
If you disable “Show hidden tracks and albums”, you’ll see the full 398 albums in the album browser.