I have an image sequence of an actor filmed against a green screen. I have keyed out the green and rendered a PNG sequence with alpha channel, and used to place him in the scene via an image sequence. It works great. I place the actor into a scene in sequencer.
This more or less covers how I did the image sequence and how I have it set up to blue in the level blueprint.
However, when I render the sequence out to a video, the image sequence starts playing too early and is not in sync. What I would like to do is have the image sequence start play at the first frame at the first frame of action in the sequencer.