Unreal Engine Issues

Incremental Linking does not appear to work for Debug and DebugGame configurations

The bUseIncrementalLinking option does not appear to actually perform an incremental build when building for the Debug or DebugGame configurations. When a build is performed with bUseIncrementalLink ...

Blurry textures on BSP geometry when a very small static mesh using the same texture is in the same scene (standalone game)

The texture streamer does not appear to take into consideration the size on screen of any BSP brushes, only static meshes. When a large brush, and a very small static mesh, both using the same textu ...

UWorld::GetNetMode returns incorrect value during UGameInstance::StartPlayInEditorGameInstance

During PIE instance initialization, there seems to be a window during which UWorld::GetNetMode will not return the expected value: before the instance's NetDriver has been created but after UGameIns ...

CSM shadow casters falsely culled due to incorrect primitive octree test

While setting up whole scene shadows, CasterOuterFrustum is used to cull shadow casters from PrimitiveOctree. CasterOuterFrustum doesn't extend far back enough, which means that if an octree node fi ...

Character jumping between two moving platforms will incorrectly inherit the sum of both platform velocities

A character standing in a base will match its velocity to the base's velocity. If that character jumps into another base its velocity will be added to the new base's velocity and the character will ...

GPU Particle Collision causes shaking when set to bounce with low resilience.

A particle emitter with GPU sprites on certain settings will shake violently as they collide with the ground. This requires there to be a strong Const Acceleration module and Collision with low resi ...

[CrashReport] UE4Editor_CoreUObject!UObject::ProcessEvent() [scriptcore.cpp:1189]

No user comments on crash group ...

Material ParticleRandom node doesn't have proper value returned in specific case

Landscape Visibility Mask Rendering with Missing Landscape Components when Deployed to Mobile Device

Landscape Material renders with missing components when using a 'Landscape Visibility Mask' and deploying to a mobile device. I have found this issue now with an Android and iOS device. I was able ...

Overriding a UFUNCTION in a Blueprint results in an empty "Event Graph" category being shown in a Data Asset containing an instance of the Blueprint

When looking at the details of a UObject contained in a Data Asset, some categories are shown even though they should not be. If a category is marked as hidden in the parent class, it will be shown ...