Crash when trying to render sequence while it contains a movieplayer

Hi there,
I am using UE 4.16 and working in sequencer. Now I have setup a media player to playback MP4 on a 3d object. I triggered an actor that does trigger the movie to playback in a certain time, this al seems to work, but when I try to render the sequencer Unreal crashes.
Did someone ever tried this? Or are there any workarounds?

regards! Tom