Assertion failed: Engine crushes when a geometry collection hits a landscape

Physics - Jul 27, 2020

This is because THeightField::PhiWithNormal has not been implemented yet. ...

Updating C++ projects with Marketplace plugins in 4.25.2 fails to build project

DevTools - Plugins - Jul 24, 2020

Projects created in previous engine versions fail to build in 4.25.2Running D:/Epic Games/UE_4.25/Engine/Binaries/DotNET/UnrealBuildTool.exe Development Win64 -Project="D:/Unreal Projects/MyProject4 ...

Particle editor realtime mode disabled when play in editor

Tools - Jul 23, 2020

Particle editor realtime mode disabled when play in editor, while it's normal in UE4.24 ...

Black flickering on Mesh particles when the Renderer is set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's WPO

Rendering - Niagara - Jul 23, 2020

Black flickering on Mesh particles when set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's World Position Offset ...

Crash Report Client Editor stops working when launching the editor

Core - CrashReportClient - Jul 23, 2020

User is receiving a CrashReportClientEditor has stopped working after launching an existing or new 4.25.1 project.  Issue was occurring in 4.25 as well.  Unable to reproduce.  ...

Fragments of a geometry collection go through complex collision

Physics - Destruction - Jul 23, 2020

Fragments of a geometry collection can not hit the mesh which is set "Use complex collision as simple" ...

Random Tri Coord Using Vertex Color Filter doesn't filter correctly

Rendering - Niagara - Jul 22, 2020

The Random Tri Coord Using Vertex Color Filter module does not filter correctly.  ...

Actors are not properly restored when undoing a Replace Selected Actors transaction

Gameplay - Components - Jul 22, 2020

When undoing a Replace Selected Actors operation, the resulting actor is corrupt and triggers an ensure where the root component is in the process of being destroyed. This is a regression that poppe ...

Can't update position with SetPositionInViewport when enable global invalidation

Tools - UMG - Jul 22, 2020

When GlobalInvalidation is enabled, do not update to the position set by SetPositionInViewport. It works fine when GlobalInvalidation is disabled. ...