I am trying to use both Amplitube and Bias FX2 (iOS 15.4.1) on my iPad Mini 6, using the USB-Micro - USB-C cable to my iRig MicroAmp.
So far, the "only" program that works is BiasFX (version 1); not any of the Amplitube Apps. All the others (including all the Amplitube Mobile products) show an input signal and output signal - green bars - , but no sound out of the MicroAmp; the MicroAmp does show an input signal from its LED for all programs)
(Except Bias FX2 - it shows a green input signal but no output signal)
So something in the signal chain is broken.
Did iOS 15 break iRig on the Microamp? Is there some kind of power issue that doesn't allow me to use the micro usb and usb-c for the newer programs?