Game crashes when DK2 is connected

Hello Experts,

I am having a very frustrating problem here.
I built and packaged several very simple projects (win 64) and downloaded some packaged UE4 games online to run on DK2.

Whenever DK2 is not attached, they work fine on my laptop. However, once DK2 is attached, the exe. file simply crashes whenever I open it. I am using the Direct HDMI mode for my Oculus Runtime and my UE version is 4.8.3

Moreover, when DK2 is attached, I cannot use “Preivew in VR mode”(or something similar) in my Unreal Editor without crashing it. It works fine when DK2 is not attached.

Here is the crashing log:
MachineId:1FFB949C4A7118C8C2617E9C187E1547
EpicAccountId:7d4c089112b847b9ab6ededd81da71e4

Anyone having the same problem? Any input would be appreciated!

Regards,