I have been wrestling with exactly the same problem for a couple of weeks now, but with Windows 10. However, I just tried my UR22 on another PC (Windows 8) and got exactly the same problem, so I am thinking it may be that my UR22 is faulty…
UPDATE - After posting this, I then tried a Windows 7 machine…same problem. Being the OCD kinda guy I am 
I had to rule out any dodgy-corrupted-drivers, or hardware-crippling Windows updates being the cause of the issue, so I formatted my hard drive and reinstalled Windows 10…installed the UR22 driver and still no luck, so unfortunately my UR22 is on it’s way back to the shop…bummer!