Summary
Assertion failed: (::DwmExtendFrameIntoClientArea(HWnd, &Margins)) >= 0 File: WindowsWindow.cpp Line: 359
I’ve formated PC, reverted Driver updates but nothing helped.
I keep getting this crash on UEFN, screen goes black and if i reopen UEFN without restarting PC the whole PC shuts down… If it helps I think it happens mostly when I alt tab or change windows.
I got the logs saved but I don’t know where to send them.
This only happens with UEFN.
RX 6600
Ryzen 5 5600
32gb ram
Windows 11 25H2
Hope someone can help me or that this can be fixed because its impossible to use UEFN like this.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Stability
Steps to Reproduce
Open UEFN, use it, eventually it will crash. Seems to happen the most when you have Fortnite open and you keep altering between Fortnite and UEFN window.
Expected Result
It shouldn’t crash, you should be able to swap between apps without any problem.
Observed Result
Screen goes black, when it comes back crash report says Assertion failed: (::DwmExtendFrameIntoClientArea(HWnd, &Margins)) >= 0 File: WindowsWindow.cpp Line: 359, then, if I don’t restart my PC, the whole pc will shut down if I reopen UEFN.
Platform(s)
PC
Additional Notes
I saw another person with this issue last month on this forum but he didn’t get any reply.