These merged links occur because the metadata sources that Roon uses have got it wrong. You can use the Album and Artist editors in Roon to correct this in your library. Long term, Roon is hoping to address this issue:
These merged links occur because the metadata sources that Roon uses have got it wrong. You can use the Album and Artist editors in Roon to correct this in your library. Long term, Roon is hoping to address this issue: