What you could try is to not play the video at all and instead have a simple Blueprint which has a float for the video time (and is thus able to be timelined in Sequencer) with a set event and seeks the video to that point and pauses it.
What you could try is to not play the video at all and instead have a simple Blueprint which has a float for the video time (and is thus able to be timelined in Sequencer) with a set event and seeks the video to that point and pauses it.