EDIT: Tried to prerender with other Formats - and there the prerendered files did not disappear.
@ritsmer - What Template? I’ll give it a go. And yet, why would a different Template allow PreRendering? I’d have thought that VegasPro would be Template-Agnostic to this PreRender process? Still a Bug then?
I tried also to prerender 15 sec from a 4K HEVC project to MC Mpeg 2 HDV. It made two files numbered oooo and ooo1 with stayed. Strange should there be a limit for the file lenght? Here the MediaInfo of the two prerendered files
I just type in selective prerender in the search box in the Help, here's what I got:
Each prerendered section will consist of no more than 300 frames (approximately 40 megabytes). Because selective prerendering creates multiple files, minor editing on the timeline will not invalidate all of your prerendered video—only the sections you modify will need to be rerendered.
Tried the suggestion of @3POINT not to include audio in pre-render template (magix avc) & it works. I experienced also this disappearing pre-rendered file but didn't bother to post it but it is already answered here.
And as an addition, pre-rendered files DO NOT INCLUDE audio. Check it in your temp files & play your pre-rendered videos, you'll see. So its useless to include your audio in your template. For me, I've made my own templates dedicated for pre-render only (no audio) & it's the solution for me not to broke my pre-rendered videos.
I buy a car to drive, not to park it in my garage to see what's under the hood.
@3POINT - Sounds good to me too. However, if that car developes an issue I take it to the Garage. This Forum is my Garage. And yes, VP should be good to go from day One and NOT keep it sleeping on my PC.