Unreal Engine Issues
Unreal Engine Issues
Material with Custom Expression at Vertex Shader Stage Does Not Compile
UE - Graphics Features - Jul 22, 2019When Custom expression is connected to custom UV then material wont compile. This is working as expected in 4.22 CL# 7053642 Found in 4.23 CL#7321677 and 4.24 CL# 7321677 This is a regression. ...
Material Billboard Renders Incorrectly In Splitscreen
UE - Graphics Features - Sep 10, 2019In splitscreen, Material node SphereMask causes Material Billboard to only be visible to first player's viewport. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8557439 ...
Thumbnails do not display shadows after opening and saving the asset
UE - Graphics Features - Lumen - Apr 14, 2020Shadows in an asset's thumbnail disappear after opening and saving the asset, whether changes are made or not. Tested: 4.24.3 CL#11590370, 4.25P6 CL#12493028, 4.26 CL#12767035 ...
Some blueprint nodes are noticeably wider
UE - Gameplay - Blueprint Editor - Feb 19, 2021Certain blueprint nodes are noticeably wider than they were in 4.25, and seem to get excessively wide if the user fills in literal pins on them. This was noticed with the Array Add nodes, but may a ...
ULevelEditorDragDropHandler::PreviewDropObjectsAtCoordinates : Should set proper referencer domain when ContentBundle is active
UE - World Creation - Worldbuilding Tools - World Partition - Aug 21, 2023ULevelEditorDragDropHandler::PreviewDropObjectsAtCoordinates sets the World as the ReferencingAsset when we should probably set the GameDataAsset for the current active ContentBundle if there is any ...
Material Layers "swap" location instead of shift downwards.
UE - Rendering Architecture - Materials - Oct 17, 2023Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...
bStaticWhenNotMoveable in Lighting category instead of Physics
UE - Simulation - Gameplay - Oct 24, 2025"UPrimitiveComponent::bStaticWhenNotMoveable"'s category is set to Lighting, not Physics. This causes it to be hidden when lighting-related properties are hidden, even though it controls physics sta ...
Crash when destroying a geometry collection actor
UE - Simulation - Physics - Aug 7, 2020When an actor with geometry collection is destroyed, the engine doesn't remove elements from array in the ChaosSolver So illegal references occurs. Removing element with following quick fix code ...
On the Details Panel of Niagara Function Inputs, the Type selector does not show "Static" types.
UE - Niagara - Apr 7, 2025Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, an input pin with type "static bool" appears. In one ...
Cooked content results in crash on launch of QAGame.exe
UE - Graphics Features - Feb 22, 2019Seems to be an issue with how the cooker is calling the contents of TM-ShaderModels. ...