Currently the FX4-SDI is not working correctly at 3840 x 2160@ 50Hz. Datapath are aware of the issue and are working on the fix. Fortunately, they have a work around that requires the input to be 3840 x 2160 @ 25Hz. This will give out smooth playback from the FX4’s outputs but will affect the Hippotizer output as the engine would be limited to 25FPS. We recommend using 60fps if possible. This workaround works in both version 1.5.1 and 1.5.2 of Wall Designer.
We will update this threat when Datapath release the fixed version.