I’ve experimented a similar issue: teleporting doesn’t work in VR template with Windows Mixed Reality controllers in the VR Preview of Motion Controller Map.
The problem is that the gesture in UE is different from standard WMR teleporting gesture.
With the default setting in UE to activate teleport arc you have to click (press) on the joystick and then (keeping it pressed) rotate the joy to adjust the point of view of the destination of teleporting.
If you act like this the teleporting function works (but it is very unconfotrable).
This UE setting is different from WMR or SteamVR standard teleporting gesture: joystick UP and then rotate the joystick (no pressure needed on the joystick).
This seems to work in my system.
I connect the HMD (this starts the WMR portal).
I start UE, I open the VR template project, I open the Motion Controller map and finally I play the VR preview.
Following this way the preview starts in the HMD without opening SteamVR (in fact no SteamVR logo appears during the ‘triangles fade out’ in the HMD and no Steam settings are available pressing the WIN button on the controllers).
This is my hardware:
HP Reverb Headset VR1000-2xxx (as listed in WMR portal)
NVIDIA QUADRO RTX 4000
Software:
Win 10 home, WMR portal;
Steam, SteamVR, WMR for SteamVR;
UE 4.25.3-13942748;
UE plugin: Oculus VR, Steam VR, Steam Controller Plugin, Microsoft Windows Mixed Reality, (OpenXR disabled);
Project Input Settings:
(Default BP settings)
Action Mapping
Teleport Right
Mixed Reality (R) Thumbstick
Teleport Left
Mixed Reality (L) Thumbstick
Under Axis Mapping
MotionControlerThumbLeft_Y
Mixed Reality (L) Thumbstick Y
MotionControlerThumbLeft_X
Mixed Reality (L) Thumbstick X
MotionControlerThumbRight_Y
Mixed Reality (R) Thumbstick Y
MotionControlerThumbRight_X
Mixed Reality (R) Thumbstick X
ALTERNATIVE SOLUTION
If you want to use UE with the same gestures as WMR portal you can choose this temporary solution:
Change the Input setting in UE
Under Action Mapping
Teleport Right
Change Mixed Reality (R) Thumbstick to Mixed Reality (R) Thumbstick Up
Teleport Left
Change Mixed Reality (L) Thumbstick to Mixed Reality (L) Thumbstick Up
With this settings you can teleport in UE with the same gesture as WMR: Joystick UP and then rotate the joystick left or right to rotate the Point of view.
The only minimal issue is that when the POV rotation exceeds 90° (left or right) the teleport starts automatically (it acts as the joystick has been released).
I’m new to UE so I’m not able to modify the BP deeply.
I hope this helps