I was having a great time with my Sony A7 III using a standard gaming HDMI capture box, the Razer Ripsaw. Unreal captured the input via the Media player, Composure worked great, Chromakeying was …OK. So, I added a DeckLink 4K Mini Recorded card to capture the 4K signal.
The card works fine. The Blackmagic Design software shows the footage. OBS sees the card and the footage perfectly. But now Unreal doesn’t show it. The Media Player sees a Blackmagic device but it doesn’t play the footage.
If I use the MediaBundle as described in the Unreal documentation I get the input data and I can select the configuration. See attachment. But there is no image. The BMD card shows just the placeholder graphics.
Any idea of what’s wrong?