Hi Roger,
Nope. But I think I have found the problem, I was in H265 instead of H264.

 

That shouldn't affect anything- it's just a more efficient codec with the same quality for less data.

@Chris021 if your signature is correct, your NVIDEA driver is from 2024, which should be updated...

@bitman I try to avoid updates most of the time to avoid problems ☺️

Are artifacts only on the uploaded video and not the rendered file? If so I don't know if there's a way to fix that on the VEGAS side. You could do a ProRes upload which is pristine.

@Chris021 I've been seeing the same issue with my recent uploads to YouTube. Not sure if it's a vp23 issue or a YouTube problem because a number of times I re-upload the same render and it was OK on the 2nd try. The one video that was screwed up twice in a row, I re-rendered with Nvenc instead of MainConcept and it was fine with that. Fwiw, I've been uploading MainConcept cbr 28mbps 4k renders for years to YouTube without a problem.

@Howard-Vigorita It's probably not related to VP23 but after migration I've used another profile to render (I didn't pay attention at first). And it appears that the only difference is H265 instead of H264. I could'nt upload a video without being screwed up with H265, and sometimes I have to upload 3 times.
I have never had this issue before.
Now I have switched back to H264 but only 1 video uploaded since this change, I have to confirm later that this was the issue.

@Chris021 Hi, this is a post where I uploaded a HEVC video to YT that got grey blotches once uploaded, after Googling YT upload preferred preferences I rendered it from VP to AVC instead & once uploaded to YT it was fine.... but as a test I later uploaded the orig HEVC & that was also fine 🤷‍♂️

(It was a few days or a wk after uploading to YT & now all 3 videos are fine, I suspect a it's a YT thing)

https://www.vegascreativesoftware.info/us/forum/grey-blotches-on-yt-video-voukoder-rendering-bt-709--149744/

I have over 400 vids on YT, 150-200 of them are HEVC uploads & they were fine.

Fwiw, I've been uploading hevc to YouTube for all my 4k's since around 2020 without a problem. I'm wondering if the moov atom up front might help... Voukoder has a faststart option that does that. Going to try that with my next upload batch next week.

Hello,

I've updated from V17 to V23 and I have artefacts on Youtube videos.

Example here at 17s:

Can someone share projects properties and render parameters to use to upload a 1080p 30fps video on Youtube ?

I had this happen to me once (hevc h.265) too, but I was able to get by fine with reuploading the same mp4 i had before

I just did a test to see if enabling faststart on the MainConcept 4k hevc renders from 2 days ago and it made no difference. Two of the batch of 15 had similar artifacts as before but on different clips

Just re-rendering with Nvenc to see it that's any better... got no artifacts in any of the batch of 15 test renders. They were all 4k Hevc Nvenc vbr 35/70 10-bit. I also enabled faststart for good measure which seemed to speed up the processing to vp9/Opus.