Unreal Engine Issues
Unreal Engine Issues
VS2015 Update 3 prevents the editor from compiling code
UE - Foundation - Cpp Tools - UnrealBuildTool - Jun 28, 2016Updating Visual Studio 2015 to Update 3 prevents code projects from compiling / creating new code projects ...
Crash when quitting the editor with VR Mode enabled
UE - Editor - Workflow Systems - May 25, 2017Qutting the engine with VR Editor on causes a crash. I could not determine a way to close the VR Editor internally so I terminated the Project by using the Desktop. Many users among the community ...
BlendSpace Loop Boundary Produces Inconsistent Sync Marker Data andTriggers an AnimSequence Follower Assertion
UE - Runtime - Animation - Jul 22, 2026Summary In UE 5.7.4, when a looping BlendSpace with Match Sync Phases enabled plays as a SyncGroup Leader and crosses its loop boundary during a transition to an external AnimSequenceFollower in th ...
VR Preview Crash when using split screen
UE - Platform - XR - Jun 3, 2016If the user tries to use split screen in the editor along with VR preview, the editor will crash ...
Crash occurs in PIE when an Actor calls a method in a UObject that attempts to modify an FString member of the UObject
UE - Foundation - Core - Jan 31, 2019The Editor will crash in PIE when an Actor calls a method in a UObject that modifies some FString members in the UObject. In the Attached project, the UObject class contains two FString members and ...
Crash when rotating and resizing a Background Blur widget
UE - Editor - UI Systems - Feb 16, 2017If the user rotates a background blur widget and then tries to resize it, this will cause the editor to crash Note: Widget cannot be opened if the widget is saved in this state. ...
Crash: Opening Project Browser from Launcher with VR Mode auto-entry enabled with HMD active (worn)
UE - Editor - Workflow Systems - Apr 24, 2017If you enable VR Mode auto entry, close the project, and then attempt to launch the engine again from the Binary launcher while the HMD is active (being Worn), the Project Browser will crash ...
Physics Asset ignoring Root Bone Rotation collision in Skeletal Mesh.
UE - Simulation - Physics - Dec 20, 2018**Physics collision ignores Capsule Collision, When Skeletal mesh root bone orientation is rotated in the Z-Axis, resulting in unexpected collision behavior. Screen shot has been attached to de ...
Error during packaging if nativizing a blueprint that contains a TMap with a UserDefinedEnum as a key
UE - Gameplay - Blueprint - Jun 17, 2019Certain Map container calls (e.g. Find, Add) will fail to compile at packaging time if a Blueprint class containing a Map variable with a user-defined enumeration as the key type is nativized. This ...
Crash when creating deferred decal material when using -d3ddebug command line argument to launch editor
UE - Graphics Features - Jul 18, 2016Discovered this while verifying [Link Removed]. Devs informed me of a command line argument that could be used to output D3D11 debug information and using it caused crashes in both //UE4/Main @ CL 3 ...