Unreal Engine Issues
Unreal Engine Issues
[AI] WP Dynamic navmesh fails to rebuild tiles with actors that are loaded but not part of the base navmesh.
UE - AI - Navigation - Feb 18, 2025WP dynamic navmesh does not properly react to actors or navigation modifiers that are loaded in areas that the navmesh has not yet streamed into. Although the actors/modifiers are not part of the ba ...
Blueprint Struct Issues - Data table wiped data
UE - Gameplay - Blueprint Compiler - Aug 19, 2024The user has come across various issues with using nested blueprint structs within a data table. The first issue relates to changing a variable in a child struct and setting it back then saving, cau ...
Crash in curve editor when fitting vertical after resetting to default
Tools - Nov 11, 2016Crash occurs in the curve editor if the user tries to Fit Vertical after Resetting to Defaults. The crash seems to only occur when a key is deleted, and the user has the last key in the curve selec ...
Crash when using merge actor on static meshes that have been affected by simplygon
UE - Gameplay - Oct 5, 2016Crash when using merge actor on static meshes that have been affected by simplygon ...
[CrashReport] UE4Editor-Engine!FMaterialShaderMap::ProcessCompilationResults(TArray<FShaderCommonCompileJob *,TSizedDefaultAllocator<32>
UE - Rendering Architecture - RHI - Feb 21, 2020Generated from CrashReporter ErrorMessage: Assertion failed: Shader [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Engine/Private/Materials/MaterialShader.cpp] [Line: 1811] Comments: Compile ...
Crash when changing parent of Material Instance with Layered Materials and viewing Layer Parameters
UE - Rendering Architecture - Materials - Aug 1, 2025Reparenting a MaterialInstance that uses Material Layers to another instance with a different layer configuration can cause the editor to crash when opening the Layer Parameters tab. This appears to ...
AIPerception components inherited from a native parent class do not expose the DetectionByAffiliation field on senses for editing in the Blueprint editor's Details view.
UE - Gameplay - Blueprint - Dec 15, 2017The "Detection by Affiliation" field cannot be edited in the Blueprint editor's Details view for an inherited AIPerception component in the "Senses Config" array if the AIPerception component is inh ...
Attempting to Rename Multiple Sockets Crashes the Editor
OLD - Anim - Apr 17, 2019Having multiple sockets selected results in a crash when attempting to change the names of them all at once. The box to change their names appears to be grayed out but you can still click into it. U ...
Crash when Clicking on a Linear Color Default Value in an interface
UE - Gameplay - Blueprint - Jul 19, 2017When selecting a default color for a linear color input for an interface. A crash occurs when trying to bring up the color picker. ...
Crash during package save due to the async text mesh build in Text3D
UE - Virtual Production - Sep 22, 2022Saving a package in the editor while there is a queued text mesh build will cause a fatal error because the build will execute during the save, and creating objects while saving is not allowed. This ...