Instigator is no longer automatically set when spawning actors from blueprint

UE - Gameplay - Blueprint - Aug 20, 2024

Actors that are spawned from blueprints will no longer have their instigator automatically set to the instigator that spawned them. This is a regression in 5.5, because in 5.4 and earlier a null Ins ...

BoneMap thread safety crash

UE - Graphics Features - Aug 9, 2016

Crash occurs in FGPUBaseSkinVertexFactory::FShaderDataType::UpdateBoneData() on RenderThread2 at the following line: check(NumBones <= MaxGPUSkinBones); The problem seems to be a race condition ...

Sequencer XML generates wrong File Path for Image Sequence

UE - Anim - Sequencer - Sep 6, 2018

Outputing Image Sequences like {shot}/{shot} _ {frame} .png for example, the xml file doesn't reflect the right path because it's referring to .avi files. We can't find and replace avi files in ...

Renaming a folder that contains a read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync

Tools - Jan 17, 2019

Renaming a folder that contains a Read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync. This causes the original folder (which should still exist since the E ...

IME does not work in EditableTextBox in WidgetComponent

UE - Editor - UI Systems - Apr 5, 2024

WidgetComponent controls widgets through VirtualWindow, but VirtualWindow does not have HWND, so IME cannot be enabled. The following workaround enables IME activation. void FSlateEditableTextLay ...

Cannot continuously change Bone Name in SkeletalMesh Sampling Settings

UE - Anim - Jun 14, 2024

An access violation occurs in FNiagaraSkeletalMeshRegionBoneFilterDetails::HandleBoneNameComboBoxSelectionChanged() due to StringItem is nullptr. SkeletalMeshRegionCustomization.cpp void FNiagaraS ...

Level sequence updates more than once per frame when content editors are open

UE - Anim - Sequencer - May 27, 2016

When content editors are open, they cause sequencer to be updated more than once per frame. This causes animations running in PIE to play faster than expected. Licensee provides code for a potential ...

ControlRig & Sequencer: FindControlRigs returns rigs even if their track have been removed

UE - Anim - Rigging - Jun 5, 2024

Constraint Actor to Rig with Editor Utility Widget is working for the first time adding to the Sequencer. However if it was deleted and added to Sequencer again, run Scripted Actor Action shows Err ...

Disabling DFAO prevents landscape from contributing to Lumen scene

UE - Graphics Features - Lumen - Oct 10, 2023

From licensee: We disabled DFAO on our project (using r.DistanceFieldAO 0) to replace it with Lumen occlusion, as the combination of both was creating dark blobs under bushes and grass. However, we ...

CommonUI uses cached geometry that might be zero sized for gamepad focus

UE - Editor - UI Systems - Jan 11, 2023

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Workaround for issue is to have a text box in the vertical box before any buttons; fir ...