Cannot save the touch controller configs of steam link app in new steam BPM

I cannot save the touch controller configs of steam link app in new BPM, even though I changed the layout, every time I re-enter the steam link app, it turns back to the default layout, but I can save it in the old BPM before.

[@manpatel563]

Not getting joystick option

[@ViniTheHedgehog77]

This app is garbage anyways