R3, Android TV, Humax PVR

I have set up my Humax Aura (Android TV PVR) with the Android TV integration, and this mostly works to turn it on and off and navigate around, but I am struggling to get a few of the fairly critical navigation commands to work. The commands ‘MyRecordings’ to get to the recorded content, ‘Live’ to get to live TV, and ‘Guide’ to see the TV guide don’t seem to do anything. Does anyone else have a Humax PVR that they have been able to get these to work on, are there any other commands in the integration I should be trying, and are there any profiles or button remapping in the integration that I should try?