Unreal Engine Issues
Unreal Engine Issues
Possible incorrect logical operator used in if statement in OnlineSessionInterfaceNull.cpp
UE - Networking - Dec 31, 2014A user pointed out a possible mistaken use of the && operator instead of the || operator in an if statement in source code. In the FOnlineSessionNull::GetResolvedConnectString() function in OnlineSe ...
Stationary Skylight intensity blown out
UE - Graphics Features - Nov 29, 2016Using a Stationary Skylight appears to be blown out with the SLS Captured Scene. Movable and Static do not exhibit this behavior. Comparison gif attached and sample project attached. Tested with: ...
Streaming a Widget Class with Remote UMG displays the NO SIGNAL slate on remote devices
UE - Editor - UI Systems - Jul 15, 2020Light rendering becomes broken when at a distance of ~1000000 from origin
UE - Graphics Features - Oct 7, 2020Tested at X=20,000 with no issue Tested at X=500,000 with no issue Tested at X=1,000,000 issue occurs NOT A REGRESSION ...
An Assertion is thrown when connecting a Vertex Interpolator nod to PerInstanceCustomData node to the Result node
UE - Rendering - Architecture - Materials - Apr 20, 2022Assertion is thrown when connecting a Vertex Interpolator nod to PerInstanceCustomData node to the Result node. ...
UMaterialBillboardComponent does not render when moving
UE - Graphics Features - May 19, 2022Marking this as a Regression since it works as intended in Release 4.27.2 (CL-18319896). I've also confirmed the behavior is occurring in UE5 Main (CL-20283975) as well. ...
StateTree : Crash when executing GetPropertyRef in SubTree linked via Linked Asset
UE - AI - StateTree - Aug 26, 2025A crash occurs when GetPropertyRef node is executed from a SubTree that is linked within a StateTree, which itself has been linked from a parent StateTree via a Linked Asset ** . The processing con ...
Material Analyzer misreports static params for Material Layers
UE - Rendering - Architecture - Materials - Jan 20, 2026When analyzing materials that use Material Layers, Material Analyzer reports that multiple Material Instances “share the same static parameter array” and therefore recommends reparenting so that onl ...
WidgetBlueprint::DrawLines has broken AA on sharp cornered lines
UE - Editor - UI Systems - May 9, 2016WidgetBlueprintLibrary::DrawLines which calls FSlateDrawElement::MakeLines has broken AA for sharp cornered lines. ...
Teleport node sets the movement mode for a pawn back to default
UE - Gameplay - Oct 10, 2016Teleport node sets the movement mode for a pawn back to default. The current movement is overridden by the default after using teleport node ...