Complaints over "lost" songs with the new Singstar flood in

Transition from PS3 to PS4 not as smooth as advertised.

The brand new Singstar: Ultimate Party seems to be experiencing severe problems in utilising of previously purchased content. Many angry gamers have posted complaints on London Studio's Facebook and messageboards about missing songs. Some have reportedly lost their entire collections, where as some have only been missing a few.

The developer and Sony have already replied to the problem on Facebook, but there is no word when and how it will be fixed.

"We are continuing to look into this at the moment. If you are still experiencing these issues today, please contact us via this post, stating the country you are in and which version of the game you are playing, i.e. PS3 Ultimate Party or the XMB version.

Please be assured that you will not have to repurchase any songs you already own.

Apologies for any issues experienced."

Have you bought the game on PS3 or PS4? Please share your experiences on the game in comments.