I pre ordered an album from iTunes but a previously purchased song didn't merg with the album
Hello. I recently pre ordered an album which has 3 songs ready for download immediately. I purchased one of those songs previously as a single and downloaded it before the album was available for preorder. What happend is after I successfully completed the preorder, two songs where downloaded but the third one didn't merg with them and is still shown as a single song in a single album. When I go to the album in iTunes store I see that single song in the album list and it has the "purchased" label. I tried deleting it and downloading it again but it's still seperated from the songs in the album.
How can I possibly solve this problem?
The album is Pharmacy by Galantis. The song that is seperated is Runaway (U & I), It has the album name "Runaway (U & I) - Single" and it did not auto download like the other two songs. What made it confusing is that I also bought Gold Dust, which is also a song in the album, and it didn't have the same issue. I now have all the songs in the Pharmacy album except for Runaway (U & I).
iPhone 5, iOS 8.3