[CrashReport] UE4Editor_Engine!ULevel::GetWorldSettings() [level.cpp:1643]

This is a common and longstanding crash that has occurred since at least 4.12. User descriptions cover a variety of actions.

User Descriptions

• Compiling a playerblueprint with firing logic and advanced movement logics like double jump sliding wall running and ledge climbing
• Compiling a projectile blueprint with replication.
• Trying to exit Play mode from VR. I hit the Oculus button and exited the app, and UE4 crashed a second or so afterwards
• i was just changing tab in the editor about the same time an autosave was happening.
• Working in Levels
• After launching a network session betweeen the editor playmonde and a standalone game, when I close the standalone game ( server ) and then stop the simulation mode in the editor, it crashes
• I've been trying to make networking work between a packaged game and an in editor play mode game.

Source Context

1776       AWorldSettings* ULevel::GetWorldSettings(bool bChecked) const
 1777       {
 1778       	if (bChecked)
 1779       	{
 1780 ***** 		checkf( WorldSettings != nullptr, *GetPathName() );
 1781       	}
 1782       	return WorldSettings;
 1783       }

repro steps currently unknown

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