Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_UnrealEd!ObjectTools::ForceDeleteObjects() [objecttools.cpp:2097]
UE - Gameplay - Blueprint - Aug 8, 2016This JIRA is being entered as a result of it being one of the top crashes occurring in 4.13 Preview 1. Error message: Ensure condition failed: Lhs.CurrentNum == Lhs.InitialNum [Link Removed] [Line ...
Crash when changing a Play Node's "Sequence" to a Montage
OLD - Anim - Jan 20, 2016I understand that this is not something you're intended to be able to do (Montages aren't used this way), but we should bar the user from inserting a montage into this variable slot. Crash occurs w ...
FGameplayTagCountContainer::Reset() leaves explicit tag state and causes counts to accumulate
UE - Gameplay - Gameplay Tags - Aug 4, 2026[Summary] In UE 5.7 and later, if a tag is added once to an FGameplayTagCountContainer, the container is reset, and the same tag is added once more, GetExplicitTagCount() returns 2 instead of the e ...
[CrashReport] Mac crash - UE4Editor-Slate.dylib!FTextLayout::GetAsTextAndOffsets()
UE - Platform - Apple - Aug 15, 2017This is a trending Mac crash in 4.17.0 that also had some occurrence in 4.16. Users have not provided any descriptions of their actions when the crash occurred, but the callstack is nearly identica ...
MRQ render with a slow output format drives Niagara GPU tick flush into its dummy-view path, causing an access violation in SetShaderParameters
UE - Rendering - Architecture - Niagara - Aug 18, 2026Sorry for the AI ticket, but it did a better job than I could: Rendering a level sequence through Movie Render Queue crashes the editor with an EXCEPTION_ACCESS_VIOLATION when the scene contains a N ...
It is possible to rename a Function Output the same as a Local Variable, which causes a compile error
UE - Gameplay - Blueprint - Apr 15, 2015It is possible to rename a Function Output the same as a Local Variable, which causes a compile error: Error Internal Compiler Error: Tried to create a property TestVar in scope NewFunction_0, but ...
[CrashReport] Mac crash - UE4Editor-Slate.dylib!FSlateEditableTextLayout::FTextInputMethodContext::GetSelectionRange()
UE - Platform - Apple - Aug 15, 2017This is a trending Mac crash coming out of the 4.17.0 release, but also seems to have occurred in 4.16. Users have not provided any descriptions of their actions when the crash occurred. The callst ...
CRASH: Random Crashes: Access violation - code c0000005
UE - Gameplay - Blueprint - Dec 30, 2014Crash Report: [Link Removed] UE4Editor_CoreUObject! UPackage::SavePackage() + 23952 bytes savepackage.cpp:3305 UE4Editor_UnrealEd! UEditorEngine::SavePackage() + 1065 bytes editor.cpp:4368 UE4Edi ...
EPixelFormat::PF_R16_SINT does not render correctly for textures
UE - Rendering - Architecture - RHI - Nov 18, 2019Creating a UTexture2D the following way does not properly process gradients in the texture: ------ bool Atexture_test_actor::LoadRawFileTest( /* output */ UTexture2D*& image) { TArray<short> v ...
Crash when trying to export unsupported Paragon Skeletal Mesh asset in 4.23
UE - Editor - Content Pipeline - Import and Export - Sep 11, 2019When the user tries to export the Skeletal Mesh of TwinBlast (a paragon character that can be purchased off the marketplace) in 4.23. As of the time of logging this bug it is not supported in 4.23, ...