After updating to ios 7, iTunes Match doesn't work on iPhone 4

Question

I updated to ios 7 on my iPhone 4 last night.
I purchased iTunes Match today.  Everything has been uploaded through my computer, and everything is fine on my computer's end.  But when I open up my music app on my iPhone 4, I get a screen that says Loading iTunes Match...  and it stays there for hours. Without ever having my music pop up.

Answer 1

I have the same problem which started after I upgraded to iOS 7.  It works particularly bad on the iPhone 4. It is in "Loading iTunes Match" mode most of the time with no or very slow progress, and when it finally ends, the uploaded Playlists are never there, not one.  "Loading iTunes Match" would restart again after leaving and restarting music, say 50% of the time. Not sure what really is being loaded and can't understand why it has to be reloaded so often.
I had a problem ticket with Apple Support, but the specialist asked for a series of screenshots documenting the start time of "Loading iTunes Match" and the eventual completion time.  I told him to forget it because I had already spent too much time turning this and that on and off for so many times in so many days trying to listen to my own uploaded music and I did not want to fiddle around anymore.  I have decided not to renew my iTunes Match service in November, and have since turned off iTunes Match on all my devices and gone back to syncing to keep things simple.
I also have Amazon Cloud Player which is working just fine for the purpose of having some kind of cloud access of my music. I will be renewing this $24 service this month for another year instead of iTunes Match.
Apple was supposed to be very good at software development, and for them not resolving a problem in a paid service since the rollout of iOS 7 is just disappointing.