Question: Accessory not supported
I have an iPad Pro 12 inch that keeps popping up "accessory not supported" with no mention of what isn't supported. I have Apple's official keyboard for it. Bluetooth is on, but nothing is connected (as in nothing that could be connected has power running for it to connect. I do have a Pencil for it, but it's sitting too far away to register on the iPad.)
I have done a couple of reboots, and had Bluetooth off and had the message pop up anyway.
Is there any way to find out what accessory is causing the issue? Or just dismiss the alert permanently?
iPad Pro Wi-Fi, iOS 11.2.6, null