Unreal Engine Issues
Unreal Engine Issues
UHT always runs when building a code project using a binary Engine installation even if no code change has been made
UE - Foundation - Cpp Tools - UnrealHeaderTool - May 2, 2019When building a code project that was created with the binary Engine installed through the Launcher, UHT always runs even if no code changes have been made. This only occurs with a binary Engine ins ...
UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds
OLD - Anim - Sep 4, 2019In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...
Cloth doesn't transform properly when previewed in sequencer while simulation is paused
UE - Anim - Sequencer - May 20, 2019After pausing a simulation, sequencer does not pause. Any cloth part of the sequence does pause while the rest of the sequence is still playing. When closing the sequence and setting the sequence ...
Editor Utility Widget - 'Fill Data Table from JSON string' node parsing error
Tools - Nov 24, 2020Issue also occurs in 4.25 therefore not a regression. Original issue was submitted by a user 'Fill Data Table from csv string' node does work though The following is a snippet of the error output ...
Niagara Oscilloscope hangs indefinitely in cooked build
UE - Audio - Dec 9, 2020Cooked games will hang on startup when using the Oscilloscope data interface due to an indefinite wait in FNiagaraSubmixListener::UnregisterFromSubmix When setting GCVarEnableAudioCommandLogging t ...
Ensure when changing the Mip Gen Settings in a Texture 2D Array
UE - Rendering - Architecture - RHI - Jun 3, 2021When changing the Mip Gen Settings of a Texture 2D Array, several errors such as: Error: Corrupt texture [NewTexture2DArray]! Missing bulk data for MipIndex=0 appear in the output logs and an Ensure ...
Pasting an element into a Widget Blueprint hierarchy causes a crash
UE - AI Workflows - UI Systems - Sep 23, 2021Pasting an element into a Widget Blueprint after removing the canvas panel will result in a crash. This has been tested with the border and button elements. This issue is occurring in //UE5/Releas ...
Fbx Importer: Make sure the blendshape curve keys have the correct tangent scale
UE - Editor - Content Pipeline - Asset Migration - Oct 4, 2021The tangent of the blendshape curve seam to have the wrong scale (but correct direction) from this UDN. https://udn.unrealengine.com/s/question/0D54z000079J03OCAS/skip-compressing-anims-and-buildin ...
Unable to bind Float variables to certain properties in Widget elements
UE - Gameplay - Blueprint - Apr 7, 2022Unable to bind float variables to certain properties in Widget elements. You are able to bind Structure floats if needed as a workaround. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#183 ...
GPU Lightmass ignores IES Profiles on Static Lights while building lighting
UE - Graphics Features - Jun 8, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 GPU Lightmass ignores IES Profiles on Static Lights while building lighting. Tested with different Global Illumination and Reflection s ...