iPad totalmix with ufx plus

Having random problems with this setup live
For no reason the totalmix will reset hardware inputs and software playback to zero
This is random but usually happens after several hours of inactivity
However on one occasion it happened mid song
Have changed Apple camera kit, iPad charger and usb cable
Obviously the rme ufx is in cc mode and the host light is still visible
Have deleted and reloaded the totalmix app which is 1.96 version