Blackmagic Video Assist 4K

Hi there
I'm trying to output a video feed from the Video Assist 4K to a LED TV for my customers to get a live feed of what I'm looking at. For some reason, however, I can't get the monitor to output via HDMI out to the TV.

Does anyone know why that might be?

The monitor is set to output through HDMI and I have tried the exact same setup, with the same cables, but routing it through an Atomos instead, which works fine. It's just when I connect it to my Video Assist 4K that it doesn't seem to work.

Judging by your name I guess your in a PAL country and use 25fps. Some TV:s can't display that and the signal needs to be in a 50Hz format instead (but it can still contain 25fps of course).

What was the resolution and framerate reported from the Atomos?

Also Atomos has an option to downscale to HD when inputting 4K. Might be that it was enabled..(Going that you might run 4K video??)