Paper 2D Flipbook will not start on first frame in Sequencer

When adding flipbooks to a Level Sequence, no matter what the FPS, spawn time, or length of the flipbook in frames Flipbooks do not start on frame zero within Sequencer. They start 3 to 4 frames in, regardless of settings. I have tried matching them up frame perfect changing the spawn time, location within the sequence, etc. If anyone can shed some light on why they wouldn’t start from frame zero that would be great.