I am hearing early reports that AlbumMixer v1.10 has problems with iTunes Match and playlists. So far I haven't been able to reproduce this, but I am working on it. If you see any problems and can provide details, please comment here.
Update: Based on additional user reports, plus a lack of crash reports from Apple, I think this is an iOS or iCloud issue. Because of this and other current issues being discussed on Apple forums I cannot recommend signing up for iTunes Match at this time. If you decide to risk it, start by backing up your entire iTunes library. Apple seems to be refunding subscription fees to some users, but that won't be much of a consolation if you lose a large media library.
This release adds full support for iPad devices, and fixes some cosmetic bugs. It also adds a new mechanism for bug reports. You can now report problems through AlbumMixer itself.This should make it easier for me to fix problems, especially the ones that are tricky to reproduce.
If you want to report a problem, please start by demonstrating it within AlbumMixer. The app now logs some user actions for this purpose. Then go to Settings and click on "Report a Problem". Note that a problem report is really just an email to me. So if you want to add more information to the report, you can save it as a draft, then edit it in the Mail app, and then send it to me.
Keep shuffling those albums.