Hi all,
This is something I’ve come across when upgrading my project from UE5.5 to UE5.6.
With vSync enabled (r.vSync=1) and low latency mode also enabled (r.OneFrameThreadLag=0), the engine will freeze. It doesn’t specifically crash, and there is nothing in the logs, but the game will freeze at the frame this combination is set on, or at the first frame if these settings are in by default.
I’m not informed enough about the render pipeline to know if having the two cvars set like should ever work, but I’m just pointing out that it did in UE5.5, in case anyone else is having the same problem.
Hopefully someone can shed some light on why this is the case.
Cheers!