Widget blueprint details panel appears to jitter when dragging widgets in the designer tab

UE - Editor - UI Systems - Feb 1, 2019

When clicking and dragging a widget in the designer tab of a widget blueprint some options in the details panel will begin to move/shake/jitter/readjust. ...

When using a SpeedTree asset, a Zero Triangles warning appears

Tools - Nov 25, 2019

When exporting from SpeedTree with LODs + billboard, It seems that a warning is issued by including a material used only by Billboard. Is there a way to deal with it? ...

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 when adding Rectangle Lights to a game with multiple players while Raytracing is enabled

UE - Graphics Features - Nov 9, 2021

A user reported this issue to us through Salesforce. They initially said it crashed with both Spot Lights and Rectangle Lights, but I was only able to repro with Rectangle lights. Additionally, I di ...

LIVE: Seams appear to split in world composition browser when using lower scalability settings.

UE - LD & Modeling - Terrain - Landscape - Nov 5, 2014

When using scalability settings with the world composition browser, seams in separate landscapes break on low settings, even if they lined up on high or epic settings. ...

Montage linkable elements lose segment links when changing dependant anim sequences without loading the montage.

OLD - Anim - Apr 27, 2015

If an animation has its length changed, either by changing its play rate or reimporting with a different length - elements in any unloaded montages will end up misplaced. Workaround: Load the monta ...

French AZERTY keyboard does not recognize ù, £, §, ^, _, ', or ² keys

Tools - May 20, 2015

French AZERTY keyboard does not recognize ù, £, §, ^, _, ', or ² keys ...

Create Comment from Selection Option Not Working in Behavior Tree

Tools - Jun 8, 2016

In a behavior tree, while having multiple nodes selected, using the Create Comment from Selection option does not create a comment box as expected. Found in 4.12.1 binary. Reproduced in 4.11.2 bina ...

Editor hangs at opening Widget blueprint editor when editor preferences window is up.

UE - Editor - UI Systems - Jun 14, 2017

Editor is not responding when opening WB with Editor preferences window is up. ...

Crash when using Vertex painter with material including cubemap texture sampler

OLD - Anim - Jul 3, 2017

Engine crashes when static mesh have material with cube sampler in vertex painter mode. Simply DaylightAmbientCubemap_Mat have texture cube as texture sampler. This is not reproduced in 4.15 versi ...