Can't download previously purchased app I need to download an app from the iTunes store and have recently changed my Apple ID. I previously purchased this app with my old account and when I try to re-download it the iCloud symbol is the only option available. When I click on the iCloud icon, however, I cannot download it.
If as you say, you changed the Apple ID, the stuff from previous Apple ID is NOT accessible with new ID.

To get there you must use old Apple ID.