Okay quick update, it looks to be paired and working as expected now.
Going off the Determine Controller upgrade method in the documentation I was using the OTA method for updating the system saying it was all up to date. I’ve just used the ‘Update Via PC’ method for the controller which worked with the only downside of wiping the existing apps I had on there but at least it works now.
Thanks for your help trying to debug the issue, Michael!