Editor crash upon startup 4.7.6

I cant run the editor. It keeps bringing up this crash report. :S

MachineId:618F459F41AC257497F32780CC7DA3A4
EpicAccountId:d435921371e54a76a198742ad7ecb28f

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

Assertion failed: GApexModuleLegacy [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.7\Engine\Source\Runtime\Engine\Private\PhysicsEngine\PhysLevel.cpp] [Line: 394]

KERNELBASE + 109229 bytes
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() + 292 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() + 248 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() + 1079 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:224]
UE4Editor_Engine!InitGamePhys() + 1377 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\physicsengine\physlevel.cpp:398]
UE4Editor!FEngineLoop::PreInit() + 7659 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launchengineloop.cpp:1219]
UE4Editor!GuardedMain() + 251 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launch.cpp:110]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Hey Twibbz,

Are you using 4.7.6 version of the Engine? Are you working out of the Epic Games Launcher or from our source build from GitHub? Does this only occur when you open this specific project, or does it occur when you open freshly created templates?

Also, have you tried opening the UE4 Editor.exe from its nested location? (example: D:\Epic Games\4.7\Engine\Binaries\Win64) If you haven’t tried opening the editor up from here, could you please do so and attempt to open the project you’re having trouble with?

Looking forward to hearing back from you, thanks!

Epic Games Launcher. Opened the engine from the nested location and it somehow seemed to fix it. Many Thanks

You’re very welcome. Please let us know if you have any further questions.