Rare assertion comes up when cooking if sequencer camera track has only additive transform track

UE - Anim - Sequencer - Mar 2, 2020

If a camera track has only additive transform track, some functions return uninitialized F3DTransformTrackToken made by default constructor. It causes a rare assertion. Please take a look at F3DTra ...

Undo function breaks local variables in Blueprint Function after compiling

UE - Gameplay - Oct 8, 2020

Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...

FCableSceneProxy::BuildCableMesh thrashes memory allocator

UE - Simulation - Physics - Feb 12, 2025

FCableSceneProxy::BuildCableMesh in CableComponent.cpp:233 showed up as a hot spot in profiling because the two TArray allocators in SetDynamicData_RenderThread used by BuildCableMesh are created an ...

[CrashReport] Couldn't find Shader TShadowDepthVSVertexShadowDepth_OutputDepthPositionOnly

UE - Graphics Features - Sep 7, 2017

This is a common crash that has occurred since at least 4.16. The one user comment mentions a plugin, but many of the crashes occur on vanilla builds. User DescriptionsVaTexAltlas plugin enabled i ...

SetMasterPoseComponent overrides any SetMorphTarget operations

OLD - Anim - Oct 16, 2015

Using Set Master Pose Component overrides any Set Morph Target operations on the slave component. ...

LIVE: Transform Variable rotation not setting correctly

UE - Gameplay - Oct 21, 2014

When trying to set the rotation value of a blueprint transform variable, changing the Y value will usually reset to 0 and change the value of X and Z as well. ...

BSP not rendering correctly on Android device Galaxy Note 2

UE - Platform - Mobile - Aug 6, 2014

Repro steps: 1. Create a new project with Third Person C++ Template. 2. Build Editor 3. Build Android 4. Cook the default map with ETC1 5. Deploy to the device and launch. No BSP is being rendered a ...

SVN plugin unable to differentiate between two working copies when using same login

Tools - Jan 3, 2017

Whenever you use the same login to connect to SVN source control in the editor, the editor's SVN plugin is unable to differentiate between two working copies of the same repo. Any checkouts made in ...

OnMovieClipFinished returns the incorrect movie name

Tools - Jun 29, 2017

When OnMovieClipFinished is called, it will return the name of the movie clip that is about to be played rather than the clip that had just finished. Regression: Yes This did not occur in 4.15.3 B ...

Disabling Occlusion Culling and DBuffer Decals causers crash

UE - Graphics Features - Sep 1, 2017

THere is a crash that occurs when opening a project after the Occlusion Culling and DBuffer decals option are unchecked. There are times where the Unreal Crash reporter catches the crash and display ...