Astonishing, Another update and yet another failure to actually get your app working on JB for more than 1 song at a time...in fact, this update is a step backward from the last one (which was still woeful).
Do you have any form of formal QA/testing department or are your paying customers it?
EDIT: sincere apologies for having a go at your programmers, I appreciate they no doubt have internal pressures to work against, and are working hard. However someone, somewhere within your organisation really really really needs to take a hold of these complaints and fix them. You've a lot of competition nowadays and you're in danger of being the MySpace of the music streaming community even in your natural strongholds unless you wake up and address these issues.