WASM HTML5 Runs out of Memory in Chrome versions 58+ on Windows

UE - Platform - Mobile - May 5, 2017

We were seeing out-of-memory errors when launching on Chrome version 58 on Windows (both 32-bit and 64-bit). After some investigation, the root cause appears to be a regression introduced in Chrome ...

Get Input Touch State produces incorrect vector position

UE - Gameplay - Input - Sep 25, 2018

Get Input Touch State produces incorrect vector position when using it on Android. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4395058) ...

External Reference Spam converting projects to 4.10

UE - Gameplay - Mar 17, 2016

Converting a project from 4.8.3 to 4.10.4 causes external reference spam in the message log>map check window. Seems directly related to [Link Removed]. Making new jira on request. ...

Selecting a Packed Level Actor Blueprint Asset in Viewport does not select all packed assets

UE - World Creation - Worldbuilding Tools - Level Instances - Nov 16, 2022

The Packed Level Actor behavior has changed since 5.0.3, exhibiting the behavior described in the Result. I was able to reproduce this 4/4 times on Windows. When testing on 5.0.3, I confirmed that t ...

When Previewed, Material Nodes are not labeled as such until a new Node is added

UE - Rendering Architecture - Materials - Jan 22, 2016

When you preview a node in the material Editor, the node color will correctly switch to the Preview Blue, but will not show the preview tag until another node is added to the Graph. Preview Node:[I ...

Directional light triggers 'too many overlapping lights' error in forward shading

UE - Graphics Features - Sep 24, 2019

The underlying reason seems to be that the stationary lights require SM channels for casting shadows  from movable objects and they are assigned channels 0,1,2 by lightmass (or somewhere along the w ...

Multi-Material Skeletal Meshes assigned a Material in Details panel lose access to all other materials

OLD - Anim - Nov 21, 2014

When you assign a Material to a Multi-Material Skeletal Mesh via the Mesh's Level Viewport Details Panel, you will lose access to all the other material Elements after the first assignment. For ins ...

RENDERING: Unchecking Actor Hidden in Game for Actors is not letting them be visible in game

UE - Graphics Features - Jun 19, 2014

CHANGELIST: 2107728 BRANCH: UE4 DESCRIPTION: Unchecking the Actor Hidden in Game checkbox is not allowing a Note or an Ambient Sound be visible when played in the editor    QA REGRESSION? NO    ...

Vehicle Template Gears incorrectly affect gear shift speed

UE - Gameplay - Feb 8, 2016

Changing the Up Ratio of a vehicle movement component incorrectly alters gear shifting. For example, setting the ratio for Gear 3 to 1.0 will keep the vehicle from shifting to gear 2, etc. ...

Ensure starting PIE after editing character blueprint of a code based side scrollers

UE - Gameplay - Apr 6, 2016

After editing character blueprint of a code based side scroller project, starting PIE will show the camera detached from the character and exiting PIE causes the project to crash. NOTE: This appear ...