GarageBand RED Loop Pack problems

Hi

All of a sudden, the GarageBand RED Loop Pack that I purchased stopped giving out audio (No Volume)

When I click on the the equalizer animator moves but there is no audio coming out of it, But when I play the free ones (Blue loop pack) i get sounds for all other things in Garageband.

So my ipad speakers and headsets are working fine... seems some kind of problem only with RED Loop Pack.

Can someone help me to know how this can be fixed?

Thanks!

Ram