Editor stalls on Mac after key up, mouse up

Platform - Mac - Dec 19, 2019

UDN user reported a performance hit on Mac with the latest Hotfix release when the user is interacting with the editor either through keyboard or mouse input. This performance hit is noticeable whe ...

Duplicating a Possessable Track in Sequencer should duplicate the bound actor and bind the duplicate track to it

Tools - Sequencer - Dec 19, 2019

Duplicating a possessable object binding in Sequencer causes a new sub track added to the existing possessable with a missing binding. It's unclear what the behavior should be here, as duplicating a ...

Datasmith exporters causing problems for Github users building from source code

Tools - Datasmith - Dec 19, 2019

d:\unreal\unrealengine-4.24\engine\source\programs\enterprise\datasmith\datasmithsketchupexporter\private\DatasmithSketchUpCamera.h(7): fatal error C1083: Cannot open include file: 'SketchUpAPI/geom ...

Raytracing shadows and lighting not showing in rendertarget

Rendering - Ray Tracing - Dec 19, 2019

Raytracing shadows and light reflections not appearing in render target Tested in: 4.22.3 CL#7053642 4.23.1 CL#9631420 4.25 CL#10730208 ...

Creating a new C++ Synth Component results in a failed compile linker error.

Audio - Dec 19, 2019

Upon creating a new Synth Component C++ Class in Unreal 4.24, the compiler will fail to compile with a Linker error. ...

Adding a shot with a with two sub sequences can break object bindings between the subsequences

Tools - Sequencer - Dec 18, 2019

Bindings can break when added to a master sequence when the binding is in a sibling sequence.  ...

Initial overlaps aren't populated by BeginPlay

Physics - Dec 18, 2019

Get overlapping components/actors is not fully populated with initial overlaps by BeginPlay in 4.24, like they were in 4.23 ...

Sequencer evaluation can skip events due to gaps in frame number ranges

Tools - Sequencer - Dec 18, 2019

Sequencer rounds when converting time ranges to frame number ranges, which can cause one frame gaps. If an event falls on that gap, it will not be triggered.  ...

BP nativization emits incorrect C++ code for noexport-typed struct field access in some cases.

Gameplay - Blueprint - Dec 18, 2019

In BlueprintCompilerCppBackendUtils.cpp: #define MAP_BASE_STRUCTURE_ACCESS(x) \ BaseStructureAccessorsMap.Add(x, TEXT("#x")) Needs to be changed to: #define MAP_BASE_STRUCTURE_ACCESS(x) \ ...