Query Params are ignored when using EQS

UE - AI - Jun 26, 2019

Trying to set the Bool Match as a Query Param causes the value to not be recognized. It just thinks the value is whatever default value it has instead of reading it from the params set in the Behavi ...

Niagara Vector Field CPU access Error prevents its use in projects

UE - Niagara - Jan 31, 2020

Niagara VectorFields do not function properly since "Fix CPU Access" changes are not persistently saved. After every Editor restart or reopening projects, the Niagara-VectorField driven Emitter and ...

Crash when converting a Landscape to a Blueprint Class

UE - LD & Modeling - Terrain - Landscape - Aug 12, 2020

The Editor crashes when attempting to convert a Landscape into a Blueprint Class. Looking back to //UE4/Release-4.24 cl 11590231, this option seems to be unselectable (see attached image), which lea ...

ObjectScale node in the material editor does not work with decals

UE - Graphics Features - Aug 19, 2020

The ObjectScale node does not output the correct values in the material editor. This method works to tile images with a Surface Material Domain on a basic plane, but does not work when using it with ...

Undo function breaks local variables in Blueprint Function after compiling

UE - Gameplay - Oct 8, 2020

Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...

Crash report window does not open on GitHub source builds

UE - Foundation - Core - CrashReportClient - Jun 13, 2016

When using a source build of 4.12, the crash report client window does not open even if Crash Report Client is manually built alongside the editor. UPDATE: Only affecting Source builds from Github. ...

Post Process Ambient Cubemap Tilted

UE - Graphics Features - Nov 11, 2014

User imported a custom image in the correct format to be used as an Ambient Cubemap within the Post Process Volume. Enabled detailed lighting mode by pressing Al+5 and the image has been tilted/of ...

SunTemple Performance Regression on Galaxy S6 family devices.

UE - Platform - Mobile - Aug 17, 2016

We encountered this issue while checking data for the Mobile Compat pass on 4.13. Galaxy S6 4.12 FPS/FR: 54/18.5 Galaxy S6 4.13 FPS/FR: 24/41 Galaxy S6 Edge 4.12 FPS/FR: 53/18 Galaxy S6 Edge 4.13 ...

Light Banding for Point Lights at long distances from the World Origin

UE - Graphics Features - Jan 4, 2017

When using a point light far from the world origin the light will have banding. The shadow bias and filter sharpen can help but they are not as consistent as settings near the world origin. The only ...

[Crash] UE4Editor-MetalRHI.dylib!ReportMetalCommandBufferFailure()

UE - Graphics Features - Jan 25, 2017

Crashes when resizing Standalone game window by dragging lower right corner to and fro to increase/decrease window size. [Link Removed] Error message: SEGV_MAPERR at 0x3 Source Context:none Mos ...