Assertion Failed

Hi.

My editor keeps crashing when I click on a new game button in my hud while playing in editor with the error Assertion Failed. The button is supposed to open another map using open level blueprint function.

I tried playing that level and it works fine. I can even go to my main menu level from there, and go back to that level. Its just, when I start in main menu, it crashes.

Here is the log. Maybe someone can help me understand what it means.

Thank you for your help.

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: (CastChecked(WorldContext.World()->GetOutermost())->PackageFlags & PKG_PlayInEditor) == PKG_PlayInEditor [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp]

KERNELBASE + 24684 bytes
UE4Editor_Core + 3092349 bytes
UE4Editor_Core + 1597688 bytes
UE4Editor_Core + 1479058 bytes
UE4Editor_Engine + 9513957 bytes
UE4Editor_Engine + 9261061 bytes
UE4Editor_Engine + 9613469 bytes
UE4Editor_UnrealEd + 1802106 bytes
UE4Editor_UnrealEd + 6686342 bytes
UE4Editor!FEngineLoop::Tick() + 3876 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:2214]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:131]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Hi,
Did you find anything out about this? I’m having this problem now.
Thanks.