Input issues with HP Reverb G2 controllers

Hi,

I’m in UE4.27 and I’m having issues getting the correct input from the Reverb G2 controllers. My thumbstick axis mappings only work when I’m pressing the thumbstick. So for example to go left, I have to press the thumbstick and tilt it.
I’ve tried it with and without the HP Motion Controller plugin; with and without SteamVR plugin – all the same results. I’ve tried both SteamVR OpenXR runtime and the WMR OpenXR runtime. Nothing seems to work.
I have axis mappings set up like so:
image
Please help. How do I make this work?

there is a “hp motion controller” plugin that supposedly helps
it uses open xr plugin so both need to be on