Unreal Engine Issues
Unreal Engine Issues
Automatic Animation Compression Results in Crash
OLD - Anim - Dec 1, 2015Using the "Automatic" option to compress animation results in crash 100% in UE4.10 but does not occur in UE4.9.2. *Regression ...
D3D Crash applying Built Lighting in a level containing Static Foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jun 20, 2017Editor session crashes applying Built Lighting in a level containing Static Foliage. Note: this crash does not occur if the Instanced Foliage Mesh has mobility set to "Movable" within the Foliage D ...
BoneMap thread safety crash
UE - Graphics Features - Aug 9, 2016Crash occurs in FGPUBaseSkinVertexFactory::FShaderDataType::UpdateBoneData() on RenderThread2 at the following line: check(NumBones <= MaxGPUSkinBones); The problem seems to be a race condition ...
Event dispatchers does not correctly compile with variable that is the same BP
UE - Gameplay - Blueprint - Nov 28, 2017There is an issue occurring where Event dispatcher with inputs doesn't compile if they have a variable that is the same as the BP class. This issue only occurs with the variable being the same class ...
Incorrect render target index assignment in GLSLBackend
UE - Graphics Features - May 18, 2018While investigating [Link Removed], I have found that GLSLBackend always automatically generates render target location indices, regardless of user-specified ones via SV_TargetX HLSL semantics. Rel ...
Packaging a runtime plugin in a Blueprint project causes some Editor files to be deleted
UE - Foundation - Cpp Tools - Oct 22, 2018Attempting to package a runtime plugin (does not occur with a Development plugin) in a Blueprint project fails in 4.21 Preview 2. This also causes some Editor files to be deleted, including the Modu ...
UMG Editor Will Compile Incorrect Node And Crash When Called During Runtime
UE - Editor - UI Systems - Dec 26, 2019The UMG editor will compile as if the blueprints is valid if you make "Get Text" node from a TextBlock variable, delete it and create a EditableText variable with the same name. When running a scene ...
Camera bookmark modifications are not saved unless it is a new bookmark
UE - Editor - Workflow Systems - Dec 2, 2022This is not a regression. Tested in //UE5/Release-5.0 cl20979098. Camera bookmark modifications are not saved unless it is a new bookmark. From the user reporter: "FBookmarkTypeToolsImpl.CreateOrS ...
Crashes when playing Slomo on NiagaraSystem with Solo and DesiredAge.
UE - Niagara - Mar 23, 2023When Slomo 2 is used to speed up the process, TicksToProcess is greater than 1, which means that ManualTick is called several times during one loop. When playback is completed by a ManualTick in t ...
Duplicating functions doesn't reset the GUIDs of local variables.
UE - Gameplay - Jun 15, 2023This is actually a bug with function duplication via UEdGraphSchema_K2::DuplicateGraph. After a function graph is duplicated, the function entry node still retains the same GUIDs for its local vari ...