Unreal Engine Issues

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game ...

HLOD CalculateOverlap crashes when spheres barely overlap

The engine will crash when cluster bounds barely overlap. ...

TMap entries are removed on Blueprint compile when using struct as key

Map entries are removed on Blueprint compile when using struct as key.  ...

'Particle Position', 'Particle Time' and 'Particle Random' material nodes not supported on mobile

ExtendDefaultLuminanceRange causes black rendering on Mobile renderer

Calling a native interface function implemented by a non-nativized Blueprint asset from a nativized Blueprint asset will silently fail at runtime.

In the sample project we have a Widget Blueprint asset (SomeWidget) that implements a native interface (PrintSomethingInterface.h). However, in the DefaultEditor.ini file, we've also excluded all Wi ...

Staticmesh "Reimport+LODs" do not recover the material ID for custom LOD

Normal voice chat does not activate the microphone when Mic Threshold is zero

Voice chat does not work when speaking into the microphone with a normal voice and a Mic Threshold of 0. We have to blow into the microphone or speak loudly for voice chat to work. ...

Loading instanced static mesh causes memory leak in packaged game

The leaking variable is UInstancedStaticMeshComponent::InstanceDataBuffers. The memory block is passed to InitPerInstanceRenderData() via InstanceDataBuffers.Release(). But the function doesn't mana ...

REINST classes are available in the class reference drop down

This doesn't seem to occur every time I run the editor, I can't get it to repro consistently Note: It is possible that this is happening in blueprints based off of a native c++ class has been rel ...