I’ve got a zgemma h2 hooked up to a Optoma HD projector but can’t get it to display at all. Works fine on any tv and on my last projector. It isn’t the projector as other HDMI devices work in both HDMI ports. If I switch to the zgemma it just shows a frozen image of what’s in the other HDMI port as if it’s struggling with the frequency of the zgemma or something. Anyone experienced similar?