There are several issues with the VLC based player. Depending on the platform options like zooming in or frame stepping might or might not work. Spherical or 360-degree .mp4 videos currently don't work on macOS. It may sometimes be necessary to resize the video area to enforce an update of the video image.
In this tutorial, I will show you some examples of using the FFmpeg command line editor to merge video files. You will be able to merge input1.mp4 and input2.mp4 using FFmpeg at the end of this tutorial:
According to the official Xbox support page, if there pops a message of error 0xc00d36c4, it possibly means Xbox One doesn't support the video format. On the other hand, you need to know that .mp4 is only a file extension for MP4 container. Whether your MP4 video can be played on Xbox One or not is decided by the video codec format instead of the file extension. So you should know first what video formats with .mp4 extension are supported by Xbox One. Check the supported formats below:
I was reading this answer and this one too about similar problems, but what I understand is due the resolution of the video, but I have no idea what can I do for play these videos in my device (despite those videos are .mp4 or .wmv files "the same as the predefined video - pointed with the green arrow in a previous screenshot"). 041b061a72