the problem of VR preview. (character spawn at diffrent place)

Hi

I am now using UE4.26 and VIVE for VR

I have a problem with my VR preview.

When ever I do VR preview the character always spawn at different place. For example, if I set the character place at X:0, Y:0, Z,200 on view port, it will spawn at X:120, Y:50, Z:200 in VR preview.

And it seems like the there are gap between the origin of Steam VR and UE.

However, even there is a gap between them I want to spawn my character where I set on view port.

Is there any solution for this?