Random artefacts in any kind of render

[marty2015]

I wonder if anyone has the same issue. I've been working on a premiere project and after a few edits artefacts start showing up in my renders. They show up in places that have not been edited and didn't show them the first few renders. Then i tried replacing them with after effects comps, and weirdly the artefacts disappeared and started showing up in other clips now after rendering.

I wonder if anyone has had the same issue and if there is a way to fix this.

[Peru Bob]

Try updating or rolling back your graphics driver directly from the video card manufacturer's site.

[Vidya Sagar]

Hi marty2015,

Sorry for the issue. Please try the step recommended by Peru Bob. If the issue persists, share more information with us as suggested in this article: FAQ: What information should I provide when asking a question on this forum?

Thanks,

Vidya

[Jim_Simon]

That looks like bad Optical Flow processing.  Are these clips time adjusted in some way?