Why aren't all albums listed under albums in my phone's Music app (home sharing)

I'm using home sharing to listen to music on my iPhone 4S. I can access the shared library no problem, but when I go to the Album list, not all albums are there. Everything that I've recently ripped is there but only 9 out of ~40 albums that I imported to the library (vs ripping) are listed. If I want to access that music, I can search under Artist.

I checked out the Info on albums that are listed vs those that aren't and I can't see a difference - they both have Artist & Album listed under the Info & Sorting tabs.

The main iTunes install that is doing the sharing is on a Windows 7 laptop; all the devices accessing the home share are either iOS or OS X.