Unreal Engine Issues
Unreal Engine Issues
Static code functions cause associated blueprints to not compile after a hot reload
UE - Foundation - Cpp Tools - Hot Reload - Oct 14, 2016If a function inside a BlueprintFunctionLibrary class is declared as static, instances of the function node inside blueprints cause the blueprint to not save after a hot reload. This does not affec ...
Tessellation no longer working
UE - Graphics Features - Jan 12, 2016Material Tessellation is no longer working in 4.11 Preview 2, 3, or 4. It is also no currently working in 4.12 Main. Working: 4.10.2 - CL-2818068 Not Working: Tested in Dev-Release CL-2824708 Not ...
Editor crash when enabling Distance Field AO Visualization in the Forward Renderer
UE - Graphics Features - Jan 9, 2017When forward rendering is enabled along with Mesh Distance Fields if you go to visualize Distance Field AO in the main viewport the editor will crash. This only affects the Forward Render and works ...
Black artifacts when navigating viewport
UE - Graphics Features - Apr 18, 2017When navigating the viewport, placed actors can leave a "black shadow" as the camera viewpoint changes. The artifacting remains until "Game view" or wireframe mode is activated. This only occurs i ...
World Outliner selection does not update transform widget location during play
Tools - May 23, 2017World Outliner selection does not update transform widget location during play. This issue can be easily fixed simply by reselecting the object, this issue only affects the first time the object is ...
Point Lights Y-Axis Rotation Changed from 4.18 to 4.19
UE - Graphics Features - Jun 6, 2018Possibly related to [Link Removed]. This affects Static, Stationary, and Movable point lights when upgrading a project from 4.18 to 4.19.2 or Main (tested in CL 4101872). If you click the "Reset to ...
'Set Timer by Function Name' not able to call functions that return an Output Parameter
UE - Gameplay - Jul 16, 2018When using a 'Set Timer by Function Name' node with a Function that has an Output parameter it will fail at executing the Function. If the Function is called with an Event BeginPlay node it will fu ...
Control Rig Creation Crash Triggered by “skel” Prefix in Skeletal Mesh Name
UE - CAPT - Control Rig - Nov 27, 2025When generating a Control Rig from a Skeletal Mesh that contains “skel” in its name—or uses it as a prefix (i.e. skel_test)—Unreal Engine crashes. The crash occurs both when using the native Creat ...
Setting inherited variables in child blueprint crash editor
UE - Gameplay - Blueprint - Apr 15, 2015PIE without compiling child blueprint (3rdSpiderPawn in example) that is attempting to affect an inherited variable will crash the editor. Additional Information: User has several cast to nodes ca ...
Major artifacting in FP Template with Skylight in ES31 Deferred
UE - Platform - Mobile - Sep 4, 2015When the First Person Template is deployed to a Nexus 9 using ES31, there is an extreme magenta color over the screen. Disabling post process reduces the bloom, but there is still major color artif ...