Unreal Engine Issues

Async Physics incorrectly interpolates when multiple physics ticks pass

If a user set the transform of a Body from the game thread and physics is running multiple async ticks perf game tick, the transforms might be being calculated incorrectly. ...

Control Rig settings are not retained between editor sessions or carried into deployed game

Control Rig settings are not retained between editor sessions or carried into deployed game ...

ZenGarden or project with MSAA enabled crashes on iPhone 6 and 6+

Zen Garden crashes on the iPhone 6+ before anything appears onscreen. Occurred on: iPhone 6+ on 10.3.2 Didn't occur on: iPhone 6S on 10.3.2 ...

Race condition in full builds of UE4 engine source

This is a race condition caused by how "Clean.bat", a batch file used during rebuilds, tries to manually rebuild the UnrealBuildTool project when it runs. This causes a spam of UnrealBuildTool build ...

Compilation error when using Particle SubUV in Niagara Mesh Particles with Raytracing enabled.

The licensee has shared the following workaround for modifying NiagaraMeshVertexFactory.ush. struct FVertexFactoryInterpolantsVSToPS { TANGENTTOWORLD_INTERPOLATOR_BLOCK #if USE_PARTICLE_SUBU ...

[CrashReport] UE4Editor-MetalRHI!FMetalCommandEncoder::SetShaderTexture(mtlpp::FunctionType, FMetalTexture const&, unsigned long, mtlpp::ResourceUsage) [MetalCommandEncoder.cpp:1702]

Generated from CrashReporter ...

[CrashReport] UE4Editor-MetalRHI!FMetalCommandBufferDebugHelpers::TrackResource(id<MTLCommandBuffer>, objc_object*) [MetalCommandBuffer.cpp:147]

Generated from CrashReporter ...

Adding a section with mesh editor mode lead to a staticmesh editor crash

Mobile Previewer: Safe Zone Invalid Until Window Resize

When the Mobile Previewer loads, the Safe Zone widget is not working properly at startup, and requires a window resize to update to the correct Safe Zone. ...

Using dynamic bindings in a code class will result in the bindings becoming a permanent part of any Blueprint created from that class if a hot reload is performed.

If dynamic bindings are being used in a custom code class from which Blueprints are derived, any hot reload will make the bindings a permanent part of the Blueprint and they cannot be removed or cha ...