Unreal Engine Issues

Painting on animation sequence paints on invisible T-pose skeleton

ShadowProject gpu performance regression from Aftermath

The issue was originally noticed between 4.15.1 and 4.16 Preview, but now appears to have regressed between 4.15.1 and 4.15.2. ...

Packaging for ARM 32 bit fails during build phase with libopenvr_api.so: file not recognized

This is the ouput in the UnrealBuildTool log:[301/301] Link ThirdPersonServer D:/GitHub-Release-4.16/3427662/Engine/Source/ThirdParty/OpenVR/OpenVRv1_0_6/lib/linux64/libopenvr_api.so: file not reco ...

Duplicated bp components incorrectly double their transforms when created

Add a light to a blueprint Move it away from the origin Right click on the component and duplicate it Notice that the new light is now a child of the previous light and that its transform is now in ...

[CrashReport] UE4Editor_Engine!UBlendSpaceBase::UpdatePreviewBasePose() [blendspacebase.cpp:1220]

This crash has been logged due to high frequency among our users. I have tested in 4.15.2 based on the user comments below, but have been unable to reproduce this issue. In my attempts the Blendspa ...

HTML5 fails during Package Command with ASM enabled

While testing in //UE4/Release-4.16 CL 3432136 in Binary – Launching a blueprint - FirstPerson template to Chrome encounters an error.LogPlayLevel: Program.Main: ERROR: AutomationTool terminated wit ...

Crash when updating phsyics simulated box extent during runtime

If a Box Collision component is set to simulate physics, calling "Set Box Extent" causes the editor to crash. Workaround: Setting Collision Enabled for the box component to "Physics Only" or "Query ...

If Import animation is not enabled then morph targets will not be imported even if the model has them.

Importing an asset with morph targets enabled, but with import animation disabled does not import morph targets. Note: if you open the asset and press re import the asset's blend shapes will reimpo ...

Specular Highlight Much Stonger/Larger In Forward Shading

In forward shading specular highlights appear to be much larger for very smooth materials in contrast to the deferred shader. In 4.14.3 the specular highlights were displaying correctly in forward s ...

iOS movie become laggy and crashes when played in iPhone 6/6s.

Movie play in iOS is laggy and crashes in some movie. This issue seems to be happening when the movie is played in umg widget. Tested in 4.14.3 4.15 Dev_Mobile Latest as of 2/24 Original UDN post ...