Cannot Find Appropriate Codec Message

I upgraded from 16 to 18 today. Renders in H.264 are fine. If I try to render in H.265 in either Quicktime or MP4 I get Cannot find appropriate codec for encoding the video frame. Does not matter if I use old projects or make a new project - same message.

GPU is an NVIDIA GE Force GT 710.

Any ideas? The graphics card is fairly low end so I'm wondering if that's the issue? What would happen if I remove the card entirely? I also have Premiere Pro and that renders in H.265 no problem.

Thanks all.

It's a weird glitch that happens every once and a while for me. What I did to fix it was switch the latency method of encoding. Play around with those settings and it might work. And even if you switch it back after changing it it might work—like I said, it's a weird inconsistent glitch.

Sent from my motorola razr using Tapatalk

Thanks Bryan - not sure what you mean exactly by switch the latency method of encoding?

Evidently it was my cheap graphics card that could not handle the codec. I removed it and can now render H.265 with the CPU. It is taking forever but at least I'll end up with much smaller files than with H.264.

Open to other ideas if anyone has any?

Try with your card again and render out of DR as Cineform or DNxHR.
Then do the final encoding with HandBrake.

Certainly seems like a lot of H.264/5 problems recently. Even more on the Subreddit.

I recommend using DNxHR HQ instead. It is clearly much better supported by BM.

The graphics card is fairly low end so I'm wondering if that's the issue?

You should most definitely have a plan to upgrade ASAP.

For what it's worth, I am still encountering this bug. Saving the project and restarting Resolve fixes the problem and allows me to render with the same settings for which I get "Cannot find appropriate codec" before the restart. So if all else fails, turn it off and on again.

Ran into this bug. Deleted the export. Recreated it exactly the same using the same preset and it worked.

(RTX 3090 so definitely not low memory)