PLEASE HELP - render queue not finishing frames

PLEASE HELP

I have a simple scene. I use a projector Plugin I bought. It is basically projecting a media file like a Videoprojector. I am projecting a movie onto a surface. The media file is running inside the sequencer (where everything looks fine).

Now I am trying to render my scene onto disk with the render-queue. The renderer runs through the frames incredibly fast, but not waiting, that they are actually being processed or shown. It just renders out unfinished frames.

I don’t need fast or realtime rendering, it can take all night if it has to. But HOW do I make Unreal write a frame only after it has been correctly rendered and then go on to process the next one. I thought cinematic render or render queue is made for that. What am I doing wrong.

Please help, I am despertly over this problem for weeks now.

Thank you!

Could you please provide a screenshot of the settings in your movie render queue?