Unreal Engine Issues
Unreal Engine Issues
Struct Default Values not registering in user generated structs
UE - Gameplay - Blueprint - Jun 15, 2016Arrays of structs do not register default values when the array is resized. Regression (no) issue (does) occur in 4.11.2 ...
Dithered LOD transitions sometimes briefly flicker to the next LOD before fading
UE - Graphics Features - Jun 12, 2025When dithered LOD transitions occur, a brief flash of the next LOD level is first shown on the entire mesh after which the current LOD fades to the next (or previous) LOD. The flashing behavior only ...
World Origin Shifting Rendering Desync On Play
UE - World Creation - Worldbuilding Tools - World Composition - Jan 27, 2020Ortho near plane clips geometry in Editor Top view
UE - Graphics Features - Aug 9, 2024When the viewport is in Top (ortho) Lit mode the near plane clips through geometry as you zoom the view in and out. ...
When multiple HLODs are set, the transition does not occur correctly
UE - Graphics Features - Aug 30, 2019The [bIsVisible] flag is set to [1] by the following judgment.const bool bIsInDrawRange = DistanceSquared >= Bounds.MinDrawDistanceSq * HLODState.FOVDistanceScaleSq; Judging from this code, I bel ...
Warning in Net.PacketNotify Test
UE - Networking - Jan 27, 2021Warning when running the packet notify test, regarding missed acks. ...
Incorrect collision of merged actor that was merged from a Spline Mesh Component
UE - Simulation - Physics - Apr 10, 2017Incorrect collision of merged actor that was merged from a Spline Mesh Component Licensee description: We often use spline mesh blueprints to generate organic art for us, like roots, trees, and r ...
Engine Crashes When Previewing ES3_1 With Material Using World Position Offset (Need Custom Stencil)
UE - Platform - Mobile - Feb 15, 2017This crash will only occur when this criteria is met.You have enabled custom depth with stencils in the project settingsA mesh in the scene is rendering to custom depth with a stencil value of 1The ...
Doing a Rebuild in Visual Studio fails to compile
UE - Foundation - Cpp Tools - UnrealBuildTool - Apr 19, 2016Attempting to use the Rebuild option in Visual Studio will fail to build the project. It instead produces a message that "Epic was unexpected". ...
Blueprint Actor with instance editable variables that are named with brackets cannot have their default values duplicated
UE - Gameplay - Oct 26, 2018When copying a Blueprint actor, Variables with brackets in their names don't have their values copied. IE: Creating a vector variable named "MyVector[]" This behavior also replicates with round brac ...