4.18 Performance Issues

GTX1080 i7440K, starts out at 120 fps on all projects and after opening any editor (blueprint window) the fps will drop to 10 and not recover unless the editor is restarted. Tested the same projects with 4.17 and the issues wasn’t present.

I do use multiple monitors and I have a hunch that is it related to this issue. I will do further troubleshooting if the problem persists past the upcoming 4.18.1.

I have totally the same issue and also make use of multiple monitors. Never happend before 4.18. Also tried complety new and even blank projects. The problem persits until the engine is restarted.

I’ve got the same problem here, massive fps drops if I open any editor windows on my secondary monitor. If I close the editor windows on the secondary monitor (or even minimize them!) the fps stabilises after a short amount of time…

Ryzen 1700 @ 3.7Ghz
OC’d 1080 Ti
16 Gb of DDR4 @ 3200mhz
SSD (Both the installation and the project files)