Octolapse - "Waiting for print to complete before rendering"

I have recently got an Ender 3 Pro and I'm brand new to Octoprint. I am trying to get Octolapse working but I have yet to generate a successful render. I tried expanding the print volume with a profile override. What is it that generates the end message? Is there a way I can generate that manually to make this render happen? I can see that I have 312 snapshots waiting to render.

The system timelapses are happening just fine, but Octolapse has never once created one.

Well what do you know? Octolapse lied to me. Although it claimed it was waiting for the end, it did in fact eventually create the video. I was confused by the name looking like the system timelapse but I noticed the filesize was much smaller and just looked at it. False alarm!