For some reason when I open a video file in OneCommander, (mp4, mov, etc.), I can't move to the video right next to it in the folder. In media player, the arrows on the side of the window don't show up as if there's no other video file there.
The first screenshot (ScShot no Arrows) is a video file opened from OneCommander & the second (ScShot Arrows) is the same file opened from File Explorer.
I don't have the same problem with opening image files.