Latest version of RIG Manager will not Communicate with my Kemper

I have the 8.5.8.30570 installed on the Kemper and the Rg Manager is 3.2.48.17248 which I assume are the most up to date versions.

However Rig Manager will not communicate with the Profiler. Is this a bug or have I doe something wrong. Everything worked fine until I was alerted for an update. How do I revert to the version that worked?

Thanks in advance.

My own stupid fault. The usb cable detached itself and obviously this should have been checked before posting. Apologies.