This issue is up since the beta began. Is anyone even working on it?
https://forum.treeofsavior.com/t/gamepad-doesnt-function-correct-in-ui-mode/87753/
https://forum.treeofsavior.com/t/gamepad-ui-select-function-not-working/84732
Also, when the UI was working back on CBT1, if you teleport to places using the gamepad(through statue) you will get stuck in place and will not teleport, being only able to turn. I can not tell if this bug persists, but since the gamepad got ReKd on this CBT2, I can guess it is still there.
The only menu the gamepad is able to click are the ones you can acess without going into UI mode.(ressurrection window/NPCs)
There used to be workarounds for this through XML edit, but since you guys blocked changes to it on a patch some time ago(and I didnt try to modify it again), workaround got destroyed. 