Can confirm it works fine in Folders, Artists and Albums. Other views has the duplication bug. For me it happens even when there is only one artist, and I see no real clue as to why some tracks are duplicated more times than others. All tracks in the same album shows the same amount of times though. It happens on both my Xperia 5 II and my old Xperia XZ1. Downgrading to build 893 solved the issue for me.