USB audio interface on iPad Pro 11 3rd gen not working after upgrade to 16.4

It’s not just yours, it’s a lot of us. In my case, everything works with my iPad 9th gen, but on my iPhone 14 pro none of my audio interfaces work. I’ve tried with multiple camera adapters, some Apple official and some now, and it won’t work. It’s as if it’s getting power but then immediately is disconnecting. Ironically, the official camera adapter doesn’t even work with my iPad. I had to use a 2 dollar one off of temu which is a life saver but also a shame on apples end

I have the same issue with iPad OS 16.5.1 and my iPad 2018 Pro 12 inch. It always worked in the past. I tried Logic Pro for the first time and it did not see my M32r using the simple USBC to USB dongle which I always use non of my DAW apps see anything but the internal mic. Oddly after about an hour of it being connected I get a message saying a peripheral was now connected or something like that, and Logic and my other apps then saw the interface and I was able to record 32 tracks. But this morning I tried reconnecting the board and again it doesn't work. Apple needs to fix this and I will be canceling logic pro sub till it gets fixed.

I also want to point out that my iPad Pro has issues charging sometimes, I did a complete wipe and reinstall and it worked fine for a day everytime I connected the charger it started charing, then a day later charging became and issue again sometimes it works sometime it doesn't. My USBC hard drive mounts but not every time, but I cannot get my interface to show up again. Apple says it's most likely a hardware issue and would cost $720 to repair. I took it in for battery service the other day and they said it was not below 80 percent after three years of constant use, they also said they can check battery health over the phone and you don't have to go to the store to find out. So looks like they got my by the.... That is the issue with a single USB C port if it goes belly up you basically have a bricked ipad. You would think a powered USB interface would connect but it only did once just to make me crazy...