Yes I have this exact same problem, Micheal Jackson History album for one gets split into to two different folders in the view. Other albums which have 3 disk all link as one album ok. Seems that any "Delux" album version with extra songs also gets split into two.
I get this issue from time to time on a random album. A quick fix that has worked for me is to copy/paste the album title and artist title from a track in one of the splits to the tracks in the other split and save. Then rescan the library. Even when the titles appear to be the same doing this has resolved the issue for me.