Editor freezes when searching for blueprints while another search is active and indexing is in progress

UE - Gameplay - Blueprint Editor - Sep 10, 2020

The editor will freeze if the user starts a search for blueprints while a search is already happening during blueprint indexing. ...

Camera Position node does not work with Light Functions

UE - Graphics Features - Sep 9, 2020

When a Light Function material is applied to a light source, and after using a camera position node and plugging that node into the Emissive Color option there is no light being emitted from the lig ...

Android ETC2 Debug Builds Crash on Startup

UE - Platform - Mobile - Sep 9, 2020

Android apps build with the debug configuration on ETC2 will crash on launch. ...

Android Random Startup Crashing

UE - Platform - Mobile - Sep 9, 2020

Licensees are reporting random crashes at startup, with randomly different messages, but it seems that all have a "low-address null pointer dereference".  The licensee believes that the phone someti ...

Crash when attempting to deform a landscape when Paint Layer has not been used - Assertion failed: !TargetProxy->HasLayersContent() || !InCanUseEditingWeightmap || EditingLayerGUID.IsValid() [LandscapeEdit.cpp Line: 5252]

UE - LD & Modeling - Terrain - Landscape - Sep 9, 2020

The editor crashes when attempting to draw a weight blended texture to the landscape if it hasnt been used on that landscape yet. This crash can be completely avoided if the stone texture is painted ...

Nativizing a blueprint interface using TMap/TSet causes Fatal error in UHT

UE - Gameplay - Blueprint Compiler - Sep 9, 2020

FPropertyBase constructor does not handle a TMap/TSet property. Following workaround can avoid this error. explicit FPropertyBase(FProperty* Property) : PropertyExportFlags(PROPEXPORT_Public) ...

Crash editing Transition Logic after deleting State and Transition in State Machine

UE - Anim - Runtime - Anim Blueprints - Sep 8, 2020

Attempting to click on a node in a Transition Logic that has been opened in a new tab will cause a crash when the correlating State node and it's transition have been deleted from the State Machine. ...

Volumetric Translucent Shadow not showing in game mode

UE - Graphics Features - Sep 8, 2020

Volumetric Translucent Shadow not showing in game mode for versions 4.23-4.25.  Reported and tested in versions 4.25.3(CL 13942748), 4.24.3(CL 11590370), 4.23.1(CL 9631420), 4.22.3(CL 7053642). Wor ...

Cloth painter hangs while pressing H to preview the masks

UE - Simulation - Physics - Character - Sep 8, 2020

The DerivedDataCache for the whole SkeletalMesh doesn't need to be rebuilt while previewing the mask painting, since it will be rebuilt when exiting the painter anyway.  ...

Standalone network profiler UI is cut off and unuseable at default DPI scale

UE - Networking - Sep 4, 2020

The network profiler C# exectuable that shipped in 4.25 is not fully useable on either my development machine or my home machine, because part of the UI is cut off below the window no matter how I r ...