Sounds strange. I have the same pc all the time, a NUC pc I7 with 32 gb ram and intel graphicscard. Using 30 fps all the time, and i had the green video, but not anymore, and i just reinstalled OBS 1 time, and then only installed nessary plugins. Old installation was with a lot of other plugins tha i have tested. Maybe one of these plugins have caused the green clip.Thanks for taking the time to respond. I've got 3.0.18, latest source replay plug in, etc. What I was able to narrow down was a new video capture card as the "cause". My old ones work fine but don't support 60fps, my new Elgato CamLink 4k is the culprit. I've tried to install the software for elgato, no change. Updated codecs, no bueno. I've compared metadata in BOTH files and they're nearly identical.... nothing noteworthy.
We have a Hockey tourney starting next Friday so yeah, I'd love to get my replays and broadcast in 60fps :)
But again, it was when i played them with the vlc player, and now i can play even old replay files, that was green, with no green now.