Default Material applied to assets when Creating a Destructible Mesh

UE - Simulation - Physics - Destruction - Oct 30, 2018

Creating a Destructible Mesh from a Static Mesh isn't carrying over the Material applied to the Static Mesh. The following warning is generated when the Mesh is created and when it is fractured:LogA ...

Malformed command sent to UAT if BuildCookRun command ends with a trailing slash ("\")

UE - Foundation - Cpp Tools - Feb 14, 2019

Including a trailing slash ("\") at the end of a BuildCookRun command sent to UAT results in UAT receiving a malformed command. If the command ends with a slash, the resulting command that UAT recei ...

Spherecast against complex geometry is returning odd results

UE - Simulation - Physics - Sep 19, 2023

Turning on batching of sphere casts when colliding against complex gives incorrect results. Affects debug output and vehicle wheels and body movement. The issue is with the batch query mode which ...

[CrashReport] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:359]

Tools - Aug 31, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: !bIsReentrant [L ...

Landscape Grass Output Instances begin to float when using the Retopologize Tool

UE - LD & Modeling - Terrain - Landscape - Mar 14, 2017

When using the Retopolgize tool on a landscape that is utilizing the Landscape Grass Tool, any pre-existing grass types will begin to float and transform their locations. The only way myself and th ...

Nativized widget with String table data crashes packaged game

UE - Gameplay - Blueprint - Jun 1, 2017

There is a crash that is occurring for packaged games that use the string tables and nativized blueprints. This issue only affects a packaged build of the game. Testing for this issue did not yield ...

Checkbox steals input when set to "Self Hit Test Invisible"

UE - Editor - UI Systems - Nov 9, 2017

There is an issue with the checkbox taking input when the visibility is set to "Self Hit Test Invisible". It should not be taking input as it should have the same properties as "Hit Test Invisible", ...

Colors of Individual Lens Flare Tints Cannot be Changed in UE 4.18+

UE - Graphics Features - Jun 15, 2018

If you create a project in 4.17 and follow the Repro steps, you will be able to adjust the colors of individual lens flares. If you copy the 4.17 project into 4.18, 4.19, 4.20 Preview, or 4.21 the f ...

Foliage is Offset When Streaming Existing Levels From World Composition

UE - World Creation - Worldbuilding Tools - Foliage - Jul 3, 2018

Streaming an existing level that used World Composition places the landscapes in the correct spot, but any foliage tied to that landscape is placed on the landscape tile at 0,0 instead of its corres ...

[Landscape] returns Incorrect Physical Material

UE - Simulation - Physics - Aug 13, 2018

Doing a line trace on a landscape does not return the correct physical material unless "Generate Overlap Events" was enabled after changing the physical material. If the physical material on the lan ...