Selecting a text field that is displaying "Multiple Values" will rewrite all values for all selected entities to "Multiple Values"

Tools - Jun 14, 2015

Selecting a text field that is displaying "Multiple Values" will rewrite all values for all selected entities to "Multiple Values". Reproduced in 4.7.6, 4.8.0, and Main (//depot/UE4/Promotable-CL-2 ...

Media Player Asset not Playing in Packaged Game

Media Framework - Jun 22, 2016

Media asset fails to play in packaged game. There was a bug entered [Link Removed] which is similar, but dealt with standalone play mode as well. The standalone issue seems to have been fixed since ...

Non wrapped UVs in static mesh cause incorrect UVs on (HLOD) merged static mesh

UE - World Creation - Worldbuilding Tools - HLOD - Apr 27, 2016

HLOD seems to Generate Lightmap in the wrong UV Channel. Export a specific LOD and generating Light Map UVs, it seems like the lightmap UVs are always generating in the the channel 0, messing up th ...

Intermittent crash in CacheOptimizeIndexBuffer on Editor startup on Linux

UE - Platform - Linux - Nov 16, 2015

Building 4.10 from the GitHub release branch on Linux fails to open after install and instead crashes User Suggested Fix: Switching triangle order optimization off with r.TriangleOrderOptimization= ...

Crash when loading TM-MotionControllers in a packaged build

Docs - Samples - Oct 26, 2016

Packaged QA Game crashes when opening "TM-MotionController" This issue did not occur in 4.13 This is also affecting KiteDemo. Cinematic will crash when Editor Content is not included in the packag ...

Enabling "Show Only Modified Properties" causes details panel menu to disappear

Tools - Feb 27, 2017

Enabling "Show Only Modified Properties" causes details panel menu to disappear. Only occurs on actors/components with no modified properties. Regression: YES Worked: 3249277 (4.14.3) Broken: ...

Function boolean return nodes often set to true will default to false once saved project is closed/reopened

UE - Gameplay - Sep 1, 2017

The new function output booleans within blueprint class actors are not saving intended true/false entries. This issue is a regression. Works in: 4.16.3-3561208 Does not work in: 4.17.1-3586342 and ...

Compiling after adding a StaticMesh Component to a Child Blueprint of a Parent Blueprint causes the inherited StaticMesh Component to disappear

UE - Gameplay - Blueprint Editor - Oct 5, 2017

The Inherited StaticMesh Component in a Child Blueprint of a Parent Blueprint disappears when compiling the Blueprint. Regression: Yes Occurs in: 4.17.2, 4.18(Preview), and 4.19(Main) Does not o ...

Client move combining triggers repeated overlap start/end events on network client

UE - Gameplay - Player Movement - Jan 2, 2018

This is caused by client move combining warping the player back and replaying the move. Workaround is to set "p.NetEnableMoveCombining 0" but that is bad for network bandwidth. We should probably ...

The Build Nanite property is disabled after reimporting a mesh that has Build Nanite enabled

UE - Editor - Content Pipeline - Import and Export - Jun 23, 2022

Regression no, the issue was reproduced in Windows //UE5/Release-5.0 CL 20280985 repro rate 3/3 After the user tries reimport mesh with nanite enabled from mesh editor the mesh was reimported with ...