Unreal Engine Issues

Fix up GPU breadcrumb labels for Intel performance analysers

A licensee has brought up that the GPU breadcrumbs are incorrectly displayed with traces taken on the Intel GPU Analyzer tools (see screenshot). It looks like the format string is being passed on in ...

Property Table rendering very slow in 4.19 (regression)

Editor frame rate is very slow rendering the Property Table in 4.19.  This is a regression from 4.18 Showing frame-rate in the editor with the property editor open shows really high GPU time: [Ima ...

Setting Fixed Frame Rate Prevents Particle Collision In PIE, Standalone, and Packaged Game

If you set the project to use a fixed frame rate, particle collision no longer works. ...

Engine/Extras/MayaLiveLink Folder Not Appearing in 4.19 Installation Directories

In 4.19 installations, the Engine/Extras/MayaLiveLink folder is missing. This is preventing users from being able to access it. The release notes state "You can find pre-built binaries of the Maya ...

In the Anim Sequence Editor set a Notify's MontageTickType to be fixed to BranchingPoint if that Notify is a Native Branching Point

To avoid confusing users when working with a Native Branching Point Notify set its MontageTickType to be fixed to BranchingPoint.  ...

"Fix root motion initial rotation handling" commit breaks root motion completely

Enabling and processing root motion causes animation to rotate the wrong direction. Roll instead of Yaw. Pitch instead of roll etc. This error does not occur in UE 4.6. ...

Fix up redirectors can fail if some packages were already checked out

Fix the skeletal mesh merge tool material assignment, change the API to avoid confusion

UDN user ask us to change the API for the material to remove confusion with the material ID. Also apparently there is an issue with the skeletal mesh merge tool, the user did not give any repro ste ...

Backout attempted fix for - AutoSize triggers ensure on shortened Skel Anim Section moved past anim length

In Sequencer, calling "Edit > Auto Size" on a UMovieSceneSkeletalAnimationSection triggers the LowerBound > UpperBound ensure in UMovieSceneSection::SetRange (MovieSceneSection.h:333) when the secti ...

Fix PrimitiveComponent overlap indirection

When doing overlap tests in PrimitiveComponent, UWorld->ComponentOverlapMulti is used. The callstack for that ends up looking like this (callstack is inverted, highest level on top): UWorld::Compo ...