The hub firmware updated automatically when I 1st connected it up. When I search it says it’s up to date.
I don’t think the issue was the activity, it almost seemed like the remote couldn’t connect to the hub until I performed an action in the iOS app, then the remote started to sync and has worked fine since. Was odd.
The devices in the activity were an LG OLED77CXPUA, Apple TV 4K 1st gen & a Denon AVR-X4500H