Someone once said that there are unresolved copyright issues with the UYI songs that prevent them from playing more songs from UYI.... Dunno if that is true though.
Personally I`d like to hear civil war and estranged, m8b a version with vocals of don`t cry
bands can play whatever songs they want live regardless of any copyright issue. You don't have to pay royalties to the author either because all venues pay dues to BMI, ASCAP, and SESAC for the use of published materials for live performance or to play the recordings on the sound system.
It's ony an issue if the performance is recorded and sold for money.