Many guitar apps in ios do not recognize input 2 (UR22mkii)

As that input (2) has a hi-z option and that makes a difference in the sound and I would like to get it working---- anyone figured out a workaround?

Input 2 works:

Garageband
Line 6 Mobile Pod
Jamup Pro

Input 2 does NOT work:

Amplitube
Ampkit
Tonebridge

Thanks!