Launching multiple Editor processes in UE 5.5 can throw warnings due to USD Core plugin initialization

UE - Editor - Content Pipeline - USD - Apr 23, 2025

Launching multiple Editor processes at the same time with the USD Core plugin enabled can cause warnings to be logged like the following:LogUsd: Warning: Failed to update LibraryPath for USD plugInf ...

Creating a plugin in a C++ project opens a second instance of Visual Studio

UE - Foundation - Cpp Tools - Plugin System - May 15, 2017

Note If creating the project outside of Binary, build the project in VS, but do not close it. When creating a new plugin, the editor compiles the project and opens in Visual Studio. If the project ...

Enabling SunPosition engine plugin causes a missing file warning in a packaged build

UE - Editor - Content Pipeline - Apr 18, 2024

Licensee noted that editor-only code from the Sun Position Calculator engine plugin was causing a warning in packaged builds. A similar issue was reported for 4.22 [Link Remove ...

Crash when Taking Screenshots with Ansel Plugin using Certain Capture Types

UE - Graphics Features - Jan 5, 2017

A crash occurs when using the Ansel screen capture plugin. Some of the crashes are actually silent crashes and the editor becomes unresponsive, but does not produce a Crash Report Dialog window. Ot ...

Crash when attempting to change the parent of a material instance constant through editor scripting

UE - Rendering - Architecture - Materials - Apr 9, 2025

The built-in class "UMaterialEditingLibrary" provides various editor scripting functions related to creating and editing materials and material instances. One of these functions, UMaterialEditingLib ...

The Add node does not update in the Construction Script

UE - Gameplay - Blueprint - Feb 28, 2015

The Add node does not update in the Construction Script. Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917) ...

Point Lights Y-Axis Rotation Changed from 4.18 to 4.19

UE - Graphics Features - Jun 6, 2018

Possibly related to [Link Removed]. This affects Static, Stationary, and Movable point lights when upgrading a project from 4.18 to 4.19.2 or Main (tested in CL 4101872). If you click the "Reset to ...

Construction script is running more than once when hitting the compile button

UE - Gameplay - Blueprint - Apr 20, 2015

When the compile button is pressed the construction script will run 3 times. ...

Packaging for DLC with plugin multiple times causes failure due to file path length

When the DLC is being built for a project and stored in a plugin, the result is normaly until the DLC is packaged multiple times. This leads to the file path becoming more and more nested each time. ...

Content only plugin not working on BP Only iOS project

UE - Platform - Mobile - May 7, 2020

Plugin without source code does not seem to be included in Blueprint only project, on iOS only. It may be linked to UE4Game flow, since it is the base package used for BP projects. ...