You could test to see if your CCK is allowing MIDI connection in a number of other iOS apps, most likely nothing to do with Strom though ! Maybe midi needs to send to USB or USB+DIN, not sure it’d stop it appearing though
not sure what’s going on, the connection is very reliable usually.
make sure you’re on iOS 8.1.1, restart iPad, make sure your Rytm is on the latest OS.
there’s not much that can be done to troubleshoot besides that. it may be your USB cable?
I think it’s not a strom problem, but a camera kit issue with iOS 8. Usb works fine to Mac from rytm, I can’t believe apple could release software that stops something as simple as a camera connection kit from working.