Oculus Rift S and Steam LIV (Mixed Reality) ?

1. Error message when using Steam LIV software 

(The Oculus system has lost its connection to the display. Please check your headset's connection and then restart)

Remove the LIV software to make it work ,  But there is no error in testing HTC VIVE.

Steam LIV Customer service：
LIV doesnt really do anything at that level. if your oculus is losing connection to the display it sounds like you have issues with your device or the oculus software so, there isnt really anything to fix there .

Has anyone encountered this problem? 
thanks.