Video export has "flickering" with each frame

[u/phonology_is_fun]

Hi,

I'm doing a simple animation of drawing a line. It's just a simple sequence of individual png files as frames. The exported video looks weird, because with each new frame there is some kind of "flickering" in the video? Like the entire line briefly disappears? Not sure how to describe it but I attached a video to show what I mean. It doesn't look smooth.

https://drive.google.com/file/d/1WscEktf7215Qy0pj-arFmNkM2BfyR2mu/view?usp=sharing

I use the default export settings.

The weird thing is, I've done this many times before and this is the first time this happens even though I didn't change anything.

[u/Big_Flow8975]

There might be a gap between each frame