Stencil that has been marked with ResponsiveAA is cleared by DistortionPass

UE - Graphics Features - Dec 14, 2021

From UDN: When an object with ResponsiveAA enabled is in the screen and then an object with Distortion enabled comes into the screen, ResponsiveAA does not work. ​ I guess this is because the Ste ...

Functions containing Unicode characters break nativization on Clang-hosted target platforms.

UE - Gameplay - Blueprint - Sep 15, 2020

The UHT boilerplate code that's generated from a converted Blueprint class header file generated from a Blueprint class containing one or more function names with non-ASCII characters will fail to c ...

Unable to undo editing enum description

UE - Gameplay - Oct 30, 2019

The user is unable to undo the editing of the enum description. The output log and undo history would confirm that the undo was carried out, however it did not do anything in reality. Resetting the ...

Crash when applying a LandscapeVisibilityMask material to a Landscape's material slot

UE - LD & Modeling - Terrain - Landscape - Apr 28, 2017

Crash that occurs when applying a masked material (with LandscapeLayerBlend and LandscapeVisibilityMask) to a Landscape's material slot. This is a regression: broken in 4.16.0 CL 3405315 worked in ...

Crash upon using EComparisonMethod as a variable in a struct

UE - Gameplay - Blueprint - Jul 17, 2017

Having a variable of the type EComparisonMethod inside of a struct causes the editor to crash. This could be due to the variable being as part of the Development folders in code. Attempting to repro ...

Delay nodes occasionally don't fire the "Completed" output in a nativized build.

UE - Gameplay - Blueprint - Jun 13, 2018

This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...

Segment to Segment Navigation links not usable/working

UE - AI - Dec 3, 2015

A licensee asked about SegmentLinks not working. These were apparently disabled because they were buggy and are waiting to be fixed, but not currently being worked on. Adding this to JIRA since ther ...

Launcher and Editor context / dropdown menus do not display correctly on upcoming Windows 10 build

UE - Editor - UI Systems - Slate - Oct 3, 2016

A few users using the Windows 10 Insider Preview have found that after a certain point in the Prerelease builds, starting at 14915 it seems, the Unreal Editor and Epic Games Launcher context menus h ...

Render Movie using separate process crashes capture process

OLD - Anim - Jan 14, 2017

This is a regression exposed at CL 3242934 - QAGame: Adding test content to QA-Sequencer for Override Bindings. Crash does not occur in 4.16. I'm not certain how the content changes are triggering ...

Cast enum to byte could occasionally break cook/resave in level BP

UE - Gameplay - Blueprint Compiler - Aug 27, 2020

 Workaround:The blueprint macro had a cast from the enum to an int and that was causing the issue, getting rid of the cast and just returning the enum and then changing all the places that were usin ...