Unreal Engine Issues
Unreal Engine Issues
Hidden enumerator variables can cause the enumerator to become broken with the Select node in blueprints
UE - Gameplay - Blueprint - May 26, 2015If a user makes an enumerator in C++ and sets one of the variables to Hidden and doesn't make it the last variable of the enum, it will cause issues with the numbering of the enum when using the Sel ...
[CrashReport] UE4Editor_MaterialEditor!CastChecked<UMaterialGraphNode,UEdGraphNode>() [casts.h:192]
UE - Rendering Architecture - Materials - Aug 31, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...
[CrashReport] UE4Editor_Core!FArchive::SerializeCompressed() [archive.cpp:447]
UE - Foundation - Core - Nov 17, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: PackageFileTag.CompressedSize == PACKAGE_FILE_TAG_SWAPPED [L ...
Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key causes a memory leak
UE - Framework - Blueprint - Apr 15, 2025When Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key, the function construct the default structure in-place on the given pointer without destroying the object. This behavior ca ...
Animating blueprint mesh duplicates uncontrollably
UE - Gameplay - Components - Apr 15, 2015When animating within a blueprint of a subclass created in c++, the animating mesh replicates itself uncontrollably. Added to .h: UPROPERTY() UBoxComponent* BoxComp; UPROPERTY() USkeletalMeshCompo ...
Enum Meta is being ignored when project is packaged
Tools - Nov 4, 2014When using UMeta on Enums, text is ignored when doing Enum to String on a packaged project. ...
macOS build appears to hang due to UBT deadlocking on ps buffer
UE - Foundation - Cpp Tools - Apr 22, 2021Licensee reports buffer deadlock issue in System/BuildHostPlatform.cs (lines 283-329). Moving Proc.WaitForExit() to after the for-loop seems to resolve the issue for them.publicoverride ProcessInf ...
Crash with for loop and TArray in constructor to generate multiple StaticMeshComponents
UE - Foundation - Core - Apr 20, 2015Using a TArray to store multiple components being setup inside a for loop of a constructor will crash on project open. Crash Reporter: [Link Removed] ...
[CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::operator=() [weakobjectptr.cpp:28]
UE - Anim - Sequencer - Nov 3, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...
[CrashReport] UE4Editor_Engine!ULevel::GetWorldSettings() [level.cpp:1781]
Tools - Aug 22, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: WorldSettings != ...