Thanks for your Response
All I could find was the Information that the Video has to be a h264/mp4 file and no information about the optimal bitrate, resolution, fps…audio and the like.
So I used your “UE4_Animated_Logo.avi” from your Press-FTP-Server and converted that with the Adobe Media Encoder into a h264/mp4 video.
Here are a few of the files I tried it with (hosted via google drive).
They are all based on your “UE4_Animated_Logo.avi” and where converted using the Media Encoder Presets which are refered to in the filenames of the videos.
All 720p Versions and the 480p Version worked as described in my Post above.
The 1080p Versions do not work at all (just a black screen for a Moment, even in the editor), but i uploaded them anyway, just in case.
Thanks for your help!