USB elincenser not recognised

Hey fellow cubase users, I’ve got a problem with my iMac not recognising the USB elincenser, nothing changed to my system, all of a sudden my usb dongle isn’t recognised. It works fine on the MacBook so it’s not a faulty usb dongle. I’ve tried different USB ports on the iMac, uninstalling the elincenser and reinstalling but still no go. I’ve sent a support ticket off to steinberg but just interested if anyone else has had the same problem and what they did to resolve it. I have a big project to finish by the end of the week and would rather not finish it on the laptop.