Nikita

Hello everyone! When I connect Z cam E2-M4 (with resolution 1920x1080) trough HDMI cable with Blackmagic Video Assist 7''3G monitor the signal on monitor sometimes get lost and it happens quite often, so the monitor is like blinking, it is very embarrassing, can not even concentrate on the composition.But when I am changing resolution to 3312x2760, or 3696x2772, then everything is perfect.if I switch to 4k than it is also like 1920x1080, so the monitor screen is blinking.Maybe somebody knows how to solve this problem?