Could not make DefaultEngine.ini writable toast when changing Project Settings on Linux

UE - Platform - Linux - Oct 12, 2016

A toast message appears when changing a Project Setting on the Linux machine stating: Could not make /path/to/project's/DefaultEngine.ini writable Despite message, the information is still written ...

Multiple templates have Can't Find File warnings when cooking content for Mac

UE - Foundation - Core - Cooker - Jan 13, 2016

The following Can't Find File warnings appear for the Flying Code and BP projects when cooking content for Mac.MainFrameActions: Cooking (Mac): UE4Editor: [2016.01.13-20.14.37:469][ 0]LogInit:Displ ...

Unable to load XMPP module warning upon opening the editor

UE - Foundation - Build - GitHub - Jan 13, 2017

The following unable to load module XMPP warning appears in the output log when opening UE4Editor LogModuleManager:Warning: No filename provided for module XMPP LogModuleManager:Warning: ModuleMan ...

Accessed None for Sequence Actor references in project upgraded to 4.17

UE - Anim - Sequencer - Jul 14, 2017

In a project upgraded from 4.16 to 4.17, the level sequence doesn't play on first PIE and returns Accessed None errors. Next time you PIE, it plays fine. This now happens every time you re-open th ...

UPL addElement and addElements can infinitely recurse if tag is included in inserted data

UE - Platform - Mobile - Jul 24, 2017

Inserting element data which contains the same tag as to insert into can create an infinite loop of adding the element to itself. ...

[CrashReport] UE4Editor_Engine!FStaticMeshVertexBuffer::BindLightMapVertexBuffer() [staticmeshvertexbuffer.cpp:495]

UE - Graphics Features - Mar 20, 2018

User comment from crash group:reimporting fbx 491 void FStaticMeshVertexBuffer::BindLightMapVertexBuffer(const FVertexFactory* VertexFactory, FStaticMeshDataType& Data, int LightMapCoordinate ...

Python cannot spawn object when running in Ueditor-CMD

UE - Editor - Workflow Systems - Dec 7, 2018

It is probably link to the fact the function try to access so GUI object that are not accessible in CMD EditorLevelLibrary.spawn_actor_from_object should work in commandlet ...

FP_FirstPerson and FP_FirstPersonBP missing when adding feature packs

Docs - Samples - Dec 16, 2019

When adding the first person template (bp or code) as a feature pack, an error occurs stating "Unable to read file" and a warning "failed to import".  ...

Map Get Node Pins In Niagara Module Scripts Can't Search For Standard Data Types

UE - Niagara - Mar 16, 2020

This wasn't like this in 4.24 (see attached images). If you create a variable Engine.Owner.Position the search will find it however. Found in 4.25 Preview 2. Reproduced in 4.26 Main. ...

Crash on loading level with Landscape by 2 PIE instances

UE - Graphics Tools - Terrain - Landscape - Jun 16, 2022