Sequencer jumps last frame of each second?

Hi,

I’m rendering a sequence in 4.19 and no matter what i do sequencer seems to not be rendering the last frame of each second, resulting in a small jump every second (24fps).

I have tried changing frame rates, looked at ‘forced fixed intervals’ (which was unchecked by default) but still no joy.

Would really appreciate any help with this, I’ve had to go back to this project after 3 months just to fix this.

Many thanks,

Alex

I’m rendering as a png image sequence btw, and putting this into prem.