Hello! ( 2 PC NDI Prewiev , record and stream stutter)
Not my best English, sorry I try to somehow understand how I tested the frequency problem between 2 monitors. (preview lag in stream pc) NDi 2 pc stutter sync problem is supposed to be solved. So I've read here that the 2 monitors operate at different frequencies. I tested them all at
https://www.vsynctester.com/. In my gamer case i use IPS monitor is 59,997 hz. And my second monitor old 100 year old samsung monitor (stream pc) is 59,948 hz. Now this monitor is terrible even in the test itself.
https://www.vsynctester.com/ Now I tried these broken obs fps settings 59997/1000 etc. It helped a bit, but it wasn't perfect. My idea was to unplug this old monitor from my Stream pc and plug in my good ips monitor 59,997 hz (to stream pc) ((Now in game pc not have monitor) ) which set it at 60fps in both obs!. Funny and I started playing on the stream pc preview image. And the picture was perfectly fluid ZERO lag. I started thinking then how to fix it so that the wrong monitor would have a good preview, recording stream. It's very simple. Both PCs and obs need to turn on performance mode .
postscript. I locked the game to 60 fps with Nvidia inspector. limiter in v2 mode. perfect picture. I also tried Uncapped fps but it wasn't 100% fluid
It offered me a solution. 144hz and other problems I can't help. But maybe this thread might offer you a solution. I don't know how I helped with this, I hope so. Good luck for everyone