Generate Lightmap UVS Doesn't Update the Lightmap Coordinate Index

Tools - Jul 23, 2018

When importing an fbx file and using 'generate lightmap uvs', the light map coordinate index will not update correctly. Working properly in 4.19 CL# 4033788 Found in 4.20 CL# 4212847 and 4.21 CL# ...

Material Ambient Occlusion Does Not Work With Skylight Set to Movable

UE - Graphics Features - Jul 27, 2018

Material ambient occlusion does not work with the skylight set to movable. Setting the material to allow static lighting will fix the issue until the level is reloaded. Found in 4.19 CL# 4033788, 4 ...

Niagara Sprite Particles Incorrect Facing with Orthographic Camera When "Velocity aligned" is Set

UE - Niagara - Aug 2, 2018

Niagara sprite particles incorrectly face with Orthographic camera when "Velocity aligned" is set for its camera alignment. [Link Removed] seems to be the same issue but with Cascade. Found in 4.1 ...

Crash upon attempting to load into session via Join Session in Blueprints on iOS

UE - Networking - Aug 8, 2018

Joining a session on iOS using the Join Session node in Blueprints causes a crash on iOS. This is similar to [Link Removed] but was requested to be entered separately. This has not been reproduced ...

Adding components in an Actor then undoing them leaves sub-components

UE - Gameplay - Aug 14, 2018

Adding components in an Actor then undoing them after an action in the Viewport, leaves sub-components behind. This is a regression from 4.19.2 (CL-4033788). This issue was reported and tested in 4 ...

SolidWorks 2018 Assembly Datasmith Importer Error

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 16, 2018

A failed to import error is received when importing various SolidWorks 2018 Assembly files. A lot of the attached models are imported IGS files and were made into SolidWorks parts. Tried testing th ...

Cannot Parse a Custom Node as a Function Input to Another Custom Node In The Material Editor

UE - Graphics Features - Aug 30, 2018

Cannot parse a Custom node as a function input to another Custom node in material editor. This is working as expected in 4.18 CL# 3832480. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, and 4.21 CL# ...

Crash When Substance Material Is Applied to a Mesh In HLOD System

UE - World Creation - Worldbuilding Tools - HLOD - Sep 3, 2018

Crash when Substance material is applied to a mesh included in the HLOD system. Working as expected in 4.19 CL# 4033788. Unable to test issue in 4.21 CL# 4339215 due to plugin dependency. Found in ...

Crash when duplicating an asset before renaming it in the Content Browser

Tools - Sep 27, 2018

If you duplicate an asset in the Content Browser before the renaming box prompts input it will cause the Editor to crash. This was reported and tested in 4.20.3 (CL-4369336). This is reproducible ...

Unable to package project that includes a custom precompiled plugin

UE - Foundation - Cpp Tools - Oct 9, 2018

Packaging a project that includes a precompiled plugin fails with an error that an object reference is not set to an instance of an object. This only happens in the Binary Engine. If the Engine is ...