IPAD AIR iOS 10.0.1. Eventide H9 MAX + EVENTIDE H9 CORE.
I can NOT connect at the same time.
Ok, I'm sorry to hear that whatever Apple did in iOS 10 didn't fix the problem for you. It did work on the iPad Air we tested. So, I had hoped it would work for everyone. I sent you an email with instructions from Apple about how to collect system log information. If you wouldn't mind doing that, I'll send the info on to Apple so that they can have a look at it.