so as of lately when exporting an animation as a png sequence from Blender, every frame will at some point go black in the course of exporting, this will start at random frames and is more prevelant when exporting in higher resolutions (3840x2160 in my case) Issue couldnt possibly lie in the compositions as they're basically all low poly, not including volumetrics, liquid sims or anything specifically hard that should be forcing this issue. My hardware includes a 4090 and 128gb of ram and is running Blender 3.6.0 and like I said, I shouldnt have an issue with these comps.
This issue is messing with my work real bad as I'm trying to do overnight batch-renders and the renders will as explained at some random point come out all black, not from a specific point or frame or comp at all, it doesnt matter - but once it starts rendering black frames everything from there on out will be black, even when it goes to the next composition in the batch, those will all come out black.
If I do a PC restart the issue will be "reset" and I will be able to render the frames out until it at some point consistently starts spitting out black frames again. This can be after 5 frames or 200 frames, not dependent on what comp is being exported.
I just had a good IT guy do an thorough hardware/software scan and check the system for errors at the timecodes the frames began turning black and he found nothing that could explain this.
I'm used to eevee, which will at some point go black when vram is being exceeded, but this is using cycles and on frames that will come out after a restart or if I try again at lower resolutions, so why could this be?
When searching for the issue online, all I can find is answers about people not minding their render settings properly, a.i. hooking up the the compositor nodes right or accidentally ticking whether to use nodes/sequencer/compositor pipeline, but this is not my issue, the frames do come out right until a certain point.
Edit* I was asked to include a project file, which I will, but like I've said: this isnt dependent on this specific composition or the settings it has.