@DonF Hi I had that same issue where it seemed too very quickly rendered a 'none' file but i was messing with the preferences, don't remember the facts, i was turning off GPU & i don't have Intel CPU so.. can you share the Preferences - Video & File I/O pages,

PS & an image of the render templates you're ref to,

Thanks fr0sty. I've recently updated my GPU/display driver, but I was unaware of that HELP section driver update, so I will run that soon, as well. And I imagine the 'Intel HEVC' render format option only shows up in a PC that uses an Intel 'non-K' CPU with integrated GPU, like mine.
And thanks also, Gid, I have uploaded a JPG with your requested screenshots; let me know what you think. Never uploaded to this Forum before, so let me know if you can't read it.
DF

@DonF Hi & thanks, i understand now when you say 'Intel HEVC' but to be honest i don't think i've ever seen that in the render list when people have posted on here, so someone with more experience like @fr0sty will have to help,

In my render options there's two options of the same format, one with (NVENC) at the end, this uses my Nvidia GPU, the other above in the list without (NVENC) uses the CPU, in the Customize Template window there's also options, my default for the one without (NVENC) is Mainconcept (my CPU), yours i think would say QSV or Intel or something.. do the other render templates like Magix AVC/AAC work ok?

This is mine

PS, can i ask why - 'I successfully 'activated' several codecs prior to their first use'  - Do you work with some unusual formats? the only one I've added is a Microsoft HEVC codec & Quicktime which helps with some .mov files. I can play the majority of files i come across & if i can't it's normally not the lack of the right codec.

Intel (non K) simply implies multiplier is locked. Take note of your existing intel gpu driver number. Not all recommended intel driver updates are equal and you may need to roll back. Have used intel update assistant in the past but usually fallback to that provided with motherboard. Good luck

I don't ever remember seeing an Intel HEVC codec option in VEGAS, even on my intel system, strange.. I always just use Mainconcept HEVC (you can still use intel acceleration by selecting one of the "QSV" presets) or Voukoder (a free AVC/HEVC rendering plugin for VEGAS that actually renders faster and higher quality than the native encoders). You should try those.

I don't ever remember seeing an Intel HEVC codec option in VEGAS, even on my intel system, strange..

I do, it was a renderoption in VPro 15 and after that not more

Strange that someone sees it in VPro 19

I have never seen "Intel HEVC" as a render option in any version of VEGAS. That had to come from the install of some other product which could be why you're having an issue with it.

I have never seen "Intel HEVC" as a render option in any version of VEGAS. That had to come from the install of some other product which could be why you're having an issue with it.

It's still there but it's been turned off in Vegas internal settings for a while... I've tried turning it back on but it doesn't seem to work... I get nothing but 0-length render files.

But Magix HEVC has an Intel Qsv preset and MainConcept HEVC can also be selected in the template. So there's not really much need for a separate Intel HEVC render.

Thanks, everyone. it's interesting that my 'Intel HEVC' format option seems to be (almost) exclusive to my setup - no explanation for it. The only other video-related program installed on my VEGAS Pro PC is a late-version copy of the discontinued 'GoPro Studio', which is very handy for creating nice AVI proxy files, which then often 'work better' with Vegas than do the original GoPro camera files.

Gid: I don't work with any unusual formats - that I know of! Some codecs seem stranger than others, am I right?! Yes, all my other render formats work perfectly. I activated multiple formats just to have as many options for rendering as possible. And I will eventually settle on a trusted, 'go-to' render format, with related customized template, after I've tested them all.

Howard-Vigorita: Your suggestion sounds good, I will try setting that 'legacy' use of 'Intel HEVC' in 'preferences', and report back my results, thanks. And your comment that there may not be any real diff between the various 'QSV' formats and the erstwhile 'Intel HVC' format could well be true. If I can't make it work, I won't be losing any sleep. As I say, I'm just trying to make everything work that I'm entitled to.

With this new upgrade to Pro 19, I jumped into the deep end, coming directly from Movie Studio 12! So I'm still getting my feet wet, learning about all the latest and greatest features of Pro 19. I am ecstatic that I can still use the same basic 'interface' I've become so familiar with, for all these years. And the 'QSV' - what can I say? When I was still on MS12, I had to set aside render times IN HOURS, rather than in MINUTES, with QSV. All my formats with QSV template options work as advertised. But there are rumblings here and there about the quality of the QSV renders, so I will keep an eye out for that.

Thanks again, everyone. I'll report back any further news about this mysterious 'Intel HEVC'.

DF

(second attempt at posting a reply)

Mainconcept HEVC should work fine for you in the mean time... or Voukoder.