iTunes Match 'Make available offline' not working
I have iTunes Match, not a huge library ~7K songs. Using an iphone 6 , iOS 8.4.
Have a small subset of this I want for offline use.
Click 'Make available offline' and it goes through the motions of downloading a few hundred songs. Upon completion... MOST of the songs aren't there. No error messages, just not all the songs. This seems to be artist specific. I've gone through the process multiple times, seems as though iTunes Match doesn't want me to have Bruce Springsteen available, but I can have Bruce and the E Street Band. Can only have 3 AC/DC songs, yet I can have all my Bob Dylan albums. It does not appear to be related to those albums that I ripped from CDs I own versus those that I purchased from iTunes or any other criteria I can imagine.
Any thoughts? Thanks.
iPhone 6 Plus, iOS 8