Just installed Magix Movie Edit Pro MX ver 11.0.3.0.   The program will not properly play any MP4 file on the video monitor of the edit screen.

When I attempted to place the first MP4 file into the edit screen, the program informed me that it needed to obtain a license for MP4, which the system did quickly and then informed me the license was installed successfully.   However from that point on, every single Mp4 video I try to run will jump.  That is to say the video playback (in the editing monitor, when I hit the spacebar key) will run, then stop, then run a few seconds, then stop a few seconds, etc.