Performing a Clean on a project using a binary Engine installation on Mac removes some Engine .dylib files

UE - Foundation - Core - May 17, 2018

When a Clean is performed on a code project that uses a binary Engine installation on a Mac, some of the Engine's .dylib files are removed during the Clean process. A Clean process for a project usi ...

Blueprint iOS apps are named UE4Game.ipa

UE - Platform - Mobile - Jun 4, 2018

In 4.19 blueprint-based apps are named after the project name, but in 4.20 they are all called UE4Game.ipa This doesn't reproduce when packaging for Win64 or the apk for Android. The installer bat ...

Using the old DOF algorithm doesn't work properly

UE - Graphics Features - Jun 15, 2018

When using CircleDOF with the old algorithm it will not properly blur objects close to the camera.  Working properly in 4.19 CL# 4033788 Found in 4.20 Preview 2 CL# 4121666 and 4.21 CL# 4131780 T ...

Level Bounds Incorrectly Calculated If Particle System Does Not Have "Use Fixed Relative Bounding Box" Enabled

UE - Niagara - Jul 26, 2018

If "Use Relative Fixed Bounding Box" is disabled, level bounds will be incorrectly calculated. This seems to be similar to [Link Removed]. Found in 4.19 CL# 4033788, 4.20 CL# 4212847, 4.21 CL# 4233 ...

Crash upon selecting CameraComponent in Sequencer when level is locked

UE - Anim - Sequencer - Aug 14, 2018

Selecting a Camera Component in the Sequencer window when the level is locked causes the Engine to crash.  This was reported and tested in 4.20.1 (CL-4233996). This was reproduced in 4.19.2 (CL-403 ...

Geometry asset is tiny when importing a .udatasmith file from 3DS Max 2019

UE - Editor - Content Pipeline - Datasmith - Exporters - Sep 27, 2018

The user set up 3DS Max for centimeters and didn't do any pivot rotation. When exporting with the FBX the results are fine, but with DataSmith it is tiny for the actual geometry. This issue was re ...

Using Volume Materials in a Material Billboard Causes Crash When Used with Volumetric Fog

UE - Graphics Features - Dec 3, 2018

Using volume material used in a material billboard Causes Crash When used with volumetric fog. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 CL# 4541578, 4.22 CL# 4618663 ...

UBX Collision Rotation Is Set Incorrectly on FBX Import

UE - Editor - Content Pipeline - Import and Export - Dec 4, 2018

Imported FBXs that use UBX will import their collision rotation incorrectly. You can see this when scaling the collision non-uniformly.  Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 CL# 46 ...

Corruption in rotating decal in TM-ShaderModels on iPhone 8 and X's

UE - Platform - Mobile - Oct 9, 2017

This particular decal is animated and has a Translucent decal blend mode This occurs on both iPhone 8 and 8 Plus (11.0.2) It does not occur on: iPhone SE, iOS 11 beta1 iPhone 7 Plus, iOS 10.3.2 ...

Niagara GPU Emitter Flickering at Certain Angles When the System Origin is Occluded

UE - Niagara - Mar 25, 2019

Niagara GPU Particle Flickering at Certain Angles When the System Origin is Occluded. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 Preview 6 CL# 5439949, and 4.23 CL# 5533539 ...