Movable point light disappeared by MinScreenRadiusForLights and appeared back looks deemed.

UE - Platform - Mobile - Jun 25, 2021

The movable point light is abnormally lit when it disappeared by the setting of r.MinScreenRadiusForLights rather than "Max draw distance" and appears back. After you disable and enable the "Affect ...

Painted Landscapes have blacked out sections when deployed to a mobile device

UE - LD & Modeling - Terrain - Landscape - Mar 24, 2015

If a user uses a multi layered material to pain a landscape and then deploys this project to an iPhone 6 plus our an Android Samsung Galaxy Note3 (SM-N9005) parts of the landscape will appear to be ...

Editor crashes if Timeline Play Rate node is copied/pasted in blueprints

UE - Gameplay - Blueprint - Jan 27, 2015

Editor crashes when Timeline Play Rate node is copied/pasted. Frequency: 2/2 Crash Reporter: [Link Removed] Callstack: MachineId:4E82586D46B558EA69EF0EAA821297B1 EpicAccountId:1558531203f84e81 ...

When using StringToBytes() it returns an incorrect value

UE - Foundation - Core - Jan 4, 2018

When using the StringToBytes() function it returns one less byte due to the -1 at the end of the return. The function takes a string and converts it to bytes but it always returns one less byte than ...

When exporting a level sequence (with its associated level) to USD, the asset paths for the reference are different from 5.5 and older

UE - Editor - Content Pipeline - USD - Jul 21, 2025

In 5.6, a referenced asset path looks something like         prepend references = @../../../../../Data/USD/Exports/FN-Main/ExportFolder/Assets/Sphere.usda@ instead of         prepend references = ...

Same-named variables of other classes listed as references in blueprint

UE - Gameplay - Blueprint - Aug 14, 2015

If a variable in a blueprint is the same name as a referenced variable from another blueprint, using "find references" on the local variable will return references to both the local and the external ...

Double-Clicking a Camera in the World Outliner Changes Its Position

Tools - Sep 29, 2015

When you double-click on a camera in the world outliner to snap to its location, it instead moves the camera from its original position. Found in 4.9.1 binary. Could not reproduce in 4.8.3, this i ...

Separate Translucency Advnaced Show Flag not working as expected

UE - Graphics Features - Jan 11, 2017

The show flag Separate Translucency is on by default. In TM-ShowFlags_Advanced, the sphere in display 1.7 should not be blurry when you enter the volume. Toggling the flag on and off doesn't change ...

Crash from generated Merged Actor with no created lightmap UV

UE - Gameplay - Nov 11, 2016

If you import a static mesh with no setup lightmap and uncheck the option for Generate lightmap UV so that only the UV Channel 0 is present. When you use the Merge Actor tool with a single one of th ...

Playrate / slomo causes motion blur length to change incorrectly

UE - Graphics Features - Jun 16, 2017

Discuss with the team what the actual desired behavior should be and adjust this calculation. This one is meant to stabilize the motion blur when we have a variable delta time but may be having kn ...