Keep World option for Attach / Detach to / from Component does not replicate properly to clients

UE - Networking - Aug 23, 2018

Using Attach To Component and Detach From Component with the Keep World option for the Location/Rotation/Scale rules does not replicate properly to clients. This does work when using AttachToActor a ...

Find Session times out when run while in a Steam Session

UE - Networking - Aug 30, 2018

A user has reported an issue where Find Session times out when attempting to run it while hosting a Steam session or while being the client of one. The user mentions that this is caused by RequestLo ...

Crash When Trying to Set Default Values to a Structure That Includes a Transform Variable

UE - Gameplay - Sep 6, 2018

The Editor will crash when trying to set default values to a structure that includes a transform variable. Found in 4.19 C# 4033788, 4.20 CL# 4302132. 4.21 CL# 4347190 ...

Lightmap Density Of Imported FBX Offsetting When Lighting Is Built

UE - Graphics Features - Oct 8, 2018

Lightmap density of imported fbxs will be offset when lighting is built.  Working as expected in 4.19 CL# 4033788 Found in 4.20 CL# 4369336, 4.22 CL# 4433008 This is a regression  ...

Some blueprint nodes are noticeably wider

UE - Gameplay - Blueprint Editor - Feb 19, 2021

Certain blueprint nodes are noticeably wider than they were in 4.25, and seem to get excessively wide if the user fills in literal pins on them. This was noticed with the Array Add nodes, but may a ...

Material Layers "swap" location instead of shift downwards.

UE - Rendering Architecture - Materials - Oct 17, 2023

Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...

Loading Duplicated Level via Python API Crashes Editor

UE - Editor - Workflow Systems - Feb 16, 2023

When called from Python, in 5.1 the load level invocation results in a kernel panic style crash of the editor, with a message about the map leaking memory and not being able to be garbage collected ...

Ensure triggers when undoing change to newly created variable

UE - Gameplay - Blueprint - Sep 28, 2018

Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...

Failed to register input back buffer crash when opening a project with PixelStreaming on Windows 7

PixelStreaming - Sep 19, 2018

Projects crash upon opening with the PixelStreaming plugin enabled. ...

Setting max undilated frame time to a negative value crashes the editor

UE - Gameplay - Apr 6, 2018

In the world settings of any level, changing the max undilated frame time to a negative number results in the editor crashing. ...