Hmm.. I've tried with several Audio Interfaces.. so maybe IPAD IOS version.
Current Interface is Allen & Heath CU 12T, but same results with Presonus Studio 1810c, Presonus 1818VSL..
IPAD is newest Pro ith M4 chip / IOS 17.5 (21F84)
I just tried it again..
I can send pics/video but here are my steps:
Turn on IPAD, Turn on A&H CU12T
Load ST3, goto Settings/Audio Routing
It shows all interfaces assigned as:
Stereo Song Output CQ12T - Audio 1
Track Output 1 - CQ12T - Audio 03/04
2 - 05/06
3 - 07/08
etc..
I then set to:
Stereo Song Output - Disabled
Track Output 1 - CQ12T - Audio 01
2 - 8 (aligned)
Pull the cable or shut off and turn on A&H CU12T
and it's back to the initial as above and I have to redo it.
** I will now also try this using my MacBook Pro M2 running Sonoma 14.5 Beta and let you know..