MediaPlayer Set Track Format does not work

Hi,

I´m trying to stream a RGB video from my Intel Realsense D435 onto a texture. It works fine with this [tutorial][1]; However the resolution ist the currently the lowest of what the camera is capable of, and I cant manage to change it.

Within the MediaPlayer Editor, I can change the resolution of the preview easily with Playback Options->Video->29: YUV2 1920x1080 30fps. So I need to select the Format index 29 to get this setting.

Via Level Blueprint I set up a initialization and information script (using some variables to change settings while not playing):

So when I select Format Index 29, the SetTrackFormat returns false. The Show Info sections shows that the format is possible and its FullHD (like I said above). But the Video stream is clearly low res!

Anyone know something about this?
Thanks in advance!

Ok I found the problem:

The chosen Track Type was 0, which is Audio. You have to choose Video as Track Type (obviously) when setting the format.
Now it works!