UBT crashes when doing an incremental build

UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 9, 2017

There is a consistent crash when incrementally compiling headers containing generated code. The code for launching UHT accesses a property which is null when compiling with the UBT makefile. ...

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

UE - Simulation - Physics - Jul 27, 2020

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

Clothing jumps on Content Examples-Animation

OLD - Anim - Aug 13, 2016

When in Content Examples' Animation map, the clothes of Owen on sample 1.3 can be seen jumping upward not in sync with any movement. ...

Crash when playing a HapticFeedbackEffect_Soundwave

UE - Platform - XR - Aug 30, 2016

Array is -1 indexed, causing a crash. Fix is already in Dev-VR. Integrate to 4.13.1 (CL 3106922) ...

Score does not show up in Puzzle Template on iOS

UE - Platform - Mobile - Oct 31, 2016

Score is not displaying on iOS devices Tested on iPhone6S+_6241 OS: 9.3.5 The score displays fine on Android. ...

Using the Clean command in XCode prevents the editor from opening

UE - Platform - Apple - Nov 18, 2015

In XCode, if the Product->Clean option is used, the editor from the launcher will not open. Workaround: This can be fixed by running Verify from the Launcher. ...

Cable actor does not render correctly in viewport on Mac

UE - Graphics Features - Feb 1, 2017

The Cable actors render correctly in PIE and Standalone game. This does not occur on Windows Also occurs in 4.14.3 so not a regression ...

Ensure condition failed: PrimitiveComponent tried to render with Material MaterialInstanceDynamic, which was not present in the component's GetUsedMaterials results

UE - LD & Modeling - Terrain - Landscape - Feb 22, 2017

Top 10 ensure in 4.15. There was a fix submitted for [Link Removed] which was verified as following those steps to reproduce no longer causes this. ...

Debug Console output remains on screen after closing VR Preview if "Debug in stereo layer' is enabled

UE - Platform - XR - Jan 23, 2018

Affects VR Preview in Editor Reproduced in 4.18.3 CL 3832480 and 4.19 P1 CL 3837072 ...

Renaming a Blueprint variable loses override in grandchild Blueprint

UE - Gameplay - Blueprint Compiler - Nov 26, 2019

Renaming a Blueprint variable loses override in grandchild Blueprint. Modifying and saving the BP_Child fixes the issue with BP_Grandchild losing overrides.  ...