World Delta seconds appears to Cause a miss calculation (regression 4.12.3 -> 4.12.4)

UE - Gameplay - Jul 1, 2016

If the user uses world delta seconds in a calculation there appears to be some incorrect values. Note there is also a users project attached if you would like to look at that example. ...

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 ...

Material gets reset once despawned when using skeletalmesh component/spawnable

UE - Anim - Sequencer - Jan 13, 2017

In 4.14, 4.15 and main, material change for a spawnable actor with a skeletalmesh component gets reset once despawned. This seems to be similar to [Link Removed]. Similar to [Link Removed] ...

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 ...

Client Receives Incorrect Parent on Server Detachment if AttachParent Is Null

UE - Networking - Apr 6, 2017

User Description: In USceneComponent::PreNetReceive the old (in this case, non-null) AttachParent is being cached into NetOldAttachParent. In USceneComponent::PostRepNotifies, AttachParent and NetO ...

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. ...

Can't set Event replication settings when delegate output pin is connected

UE - Gameplay - Blueprint Editor - Feb 19, 2018

User Reported Bug Replication Settings no longer editable after event delegate is connected. Doesn't seem to affect functionality, only UI. (replication settings stay as set before plugging delega ...

[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 ...

Windows registers touch events twice - Once as mouse click

UE - Editor - UI Systems - Slate - Nov 28, 2017

When tapping on a button with a touch monitor, it is registered as two inputs. There was an issue on win7 where touch inputs were counted as touches and clicks. This seems to be the same issue on wi ...