Looping sequencers flicker at first frame in 4.19?

I have looping sequencer with cameras. It seems that in 4.19, the first frame of the sequencer when a new loop begins, always causes a small graphical flicker. It might be DoF related or something, the transform of the camera stays unbreakable.
The previous version I had was 4.15 and I didnt notice this happening. Anyone else notice this?