Unreal Engine Issues

Creating Destructible with PhysXLabs and Fracture Tool in UE4 yield different results and same settings

When creating fracturing a mesh in PhysXLabs vs UE4 fracture tool with both using Voronoi fracture and set to 25 chunks will give different results. The mesh (Attached below along with reference i ...

Loading cooked shaders in editor is broken

Issue was traced to CL4018267. Shader hashes are not preserved during cooking anymore. This is failing the check in void FShader::Register() { FShaderId ShaderId = GetId(); check(ShaderId.Materi ...

SceneDepth failed with MSAA on PC Mobile Preview

In PC ,RHICreateTargetableShaderResource2D will create SeparateTarget and ShaderResource, and after basepass resolve depth from TargetableTexture to ShaderResourceTexture. But in mobile preview,  ...

Filtering by collection is broken

This happens because the Collections module isn't loaded when the FFrontendFilter_TextFilterExpressionContext instance is created: , CollectionManager(FCollectionManagerModule::IsModuleAvailable() ...

Crash when launching dx12 for the first time with Rect Lights

Users on the forums are hitting a crash on their initial launch of the engine into dx12. There is currently a workaround to load into the project with dx11 first, compile shaders, then youre fine to ...

Divide by zero in beam update can cause editor to crash in Cascade

The licensee has traced the issue back to a divide by zero in  UParticleModuleTypeDataBeam2::Update. If the Target and Source are the same then the beams magnitude will be zero. When there is a Nois ...

Screen tearing with ARKit enabled applications

Screen tearing occurs when navigating the device around the AR space. ...

CrashReportClientEditor crashes when starting Unreal Engine

Destroying a camera actor makes the level Dirty

This does not occur except for Camera actors. ...

When playing Montage, the loop setting may slip through in rare cases.