Not seeing Quad Cortex showing in input or output devices on iPad in MIDI Guitar 2

[Vaultnaemsae]

So I carefully read through this thread from the begining and it suddenly made sense. The thing that ultimately caught my eye was your buffer size…it shouldn’t be 288. This vaugely reminded me of a past iOS issue with MG2 and also PD Space Guitar (and other apps too according the JUCE developers forum).

I went ahead and typed “MG2 iOS 18” into the search field. Here’s the first very first result that comes up:

MIDI Guitar 2 iPadOS 18.1.1 noise issue

Hi, after I installed the update 18.1.1 on my Ipad, MG2 no longer works properly. Only croaking sounds come out and the tracking is also massively faulty. Apple support has told me that the fault must lie with MG2 and that I need to contact the developers. I also deleted MG2 and reinstalled it. No change in the error. what should I do? Greetings Jörg

And, the TLDR answer is that MG2 is not compatible with iOS/iPadOS 18.

The recommendation is to replace it with the MG3 beta version, which will do everything you need and more.

So yes, you were right. It was an iPadOS update that messed things up for you and this explains why my iPad running the previous OS version still works properly.

Hope this helps.