Family sharing is not working

Question

So today I downloaded IOS 8 on both devices, Ipod 5th generation and Iphone 4S. they both have different accounts. i set up the family sharing on both devices and they were both set up. i went on the Ipod 5th generation to download the previous purchases from the Iphone 4S and all the apps show up but when i try downloading it it comes up with a "redownload unavailable with this apple ID" then it says this download is not available for this apple ID either because it was bought by a different user or the item was refunded or cancelled. i now it was not cancelled or refunded because i play it on my Iphone 4S and it works. then i tried a different paid app and it does the error again saying the same thing. please help!!!!!!!!!!!!!

Answer 1

Same issue.  Annoying.  I was looking forward to this feature more than any other in iOS 8.
I was able to manually sync the applications from iTunes to the phone, but not via the phone only (the iCloud app store download).  I get that "Update Unavailable with This Apple ID" error "because it was bought by a different user or the item was refunded or cancelled."
One of the applications I was able to install successfully via iTunes wouldn't update either, so I logged out of my spouse's account to see what would happen when I tried to update it.  It just spun and spun and never updated.  I restarted the phone, tried again (with her ID) and it gave the error.  Logged out and into my account, and was able to update.
If the error is caused by application developers not "allowing" Family Sharing, I'm afraid most old applications which aren't being updated anymore will never work.  Again, this sort of deflates the value of the "feature". 
Either this is a poorly implemented feature with a lot of bugs, or Apple misled us into believing this feature was something that it isn't.