Yeah we still have the issue. I believe I have found a fix but its a lengthy process.
For the few clients I have tried this has worked
Removed enrolment from device, delete device from Systems Manager, reboot device (iPad.. so hold both buttons until it restarts), then re-enrol.
Seems a bit silly for this to happen.. I'm just glad we only have 100 iPads, not thousands..
let me know how you get on, or if you find a simpler solution