CTRL-DJI, Capture & Smart Controller Issues

I am using a DJI Smart controller with a Mavic 2 Pro.

I have Ctrl+DJI 1.9.9 & Pix4D Capture 4.9.0 installed.

Ctrl+DJI shows as connected to the drone but when I launch Pix4D Capture it always comes up with the dialogue box saying that I need Ctrl+DJI installed (which I have) and Capture will not connect to the drone.

I have tried uninstalling and reinstalling, rebooting etc but nothing seems to work.

Anybody got any suggestions?