Unreal Engine Issues
Unreal Engine Issues
WaitMutex behaves poorly when there are casing differences in the same path
UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 5, 2021The proposed solution here is to make the casing of the path provided to the hashing function for the mutex consistent with something like:publicstatic string GetUniqueMutexForPath(string Name, stri ...
Crash when FVolumetricRenderTargetViewStateData::Mode is not properly initialized
UE - Graphics Features - Jan 15, 2025A licensee has reported that occasionally a race condition triggers a crash during the initialization of FVolumetricRenderTargetViewStateData. If FVolumetricRenderTargetViewStateData::Mode is not pr ...
The option to add a component to an Actor Blueprint from inside a child Actor Component BP isn't available
UE - Gameplay - Dec 16, 2015The option to add a component to an Actor Blueprint from inside a child Actor Component BP isn't available. Using Get Owner inside the Actor Component's Event Graph and then casting to the owning Ac ...
Some reset to default buttons not appearing for UMG Appearance
UE - Editor - UI Systems - Aug 19, 2016Some reset to default buttons not appearing for UMG Appearance. This seems to only affect the Categories like Brush, Style or categories under Style like Normal/Hovered. Individual properties rese ...
UDN: Editor ignores platform-suffixed solution file names when checking for a compiler
UE - Foundation - Cpp Tools - UnrealBuildTool - Dec 3, 2015https://udn.unrealengine.com/questions/270801/cannot-open-modules-panel-its-missing.html MikeF: The "Modules" button will automatically become hidden if the editor thinks that the user is not a pr ...
MakeSureMapNameIsValid can return other assets if the name matches an Engine Content asset
UE - Foundation - Core - May 23, 2017MakeSureMapNameIsValid will take in a FString, look for an asset matching that FString and edit it to match the asset path of the asset found. This issue is caused by the function not limiting its s ...
Custom Plugin names appear twice in editor
UE - Foundation - Cpp Tools - Plugin System - Nov 8, 2017Calling the function FTabSpawnerEntry& RegisterNomadTabSpawner( const FName TabId, const FOnSpawnTab& OnSpawnTab ); to display the name of a new plugin causes the name to be displayed twice. In t ...
Interface Message Call does not work correctly with ExpandEnumAsExecs meta specifier
UE - Gameplay - Blueprint - Jan 18, 2018When using ExpandEnumAsExecs for the execution of a BlueprintImplementableEvent in a C++ interface, if the interface function is called by message, the result will always be as though you executed t ...
Baked materials containing Texture Object are black
UE - Graphics Features - Apr 9, 2019Using a texture object in material when creating a baked material will result in black material. Confirmed in 4.23 MAIN @ CL 5806859 User also reports "this also applies to the material as seen by ...
Connection is broken between Custom event and Collapsed Graph, which is promoted to Macro
UE - Gameplay - Blueprint - Oct 8, 2020When user promotes collapsed graph that has connection to custom event to macro, connection between that custom event and new macro is brokenThis is not the case when directly collapsing selected no ...