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. ...

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 ...

Using the end of the curve as a weighted tangent does not yield the expected value.

UE - Anim - Runtime - Oct 16, 2023

When changing the tangent value, the last value is sometimes not 1.0 [Reproduce sample project] [Link Removed] ...

setting Simulate Physics and Set Actor Location And Rotation in code causes crash on project load

UE - Gameplay - Feb 19, 2015

If an actor's Simulate Physics and ActorLocation/Rotation properties are set in code the editor will crash immediately upon launch / debug in VS. ...

Crash using the 'Shot' Console Command after 'HighRes Shot 2'

Tools - Apr 7, 2015

A crash occurs when using the 'HighRes Shot 2' command, followed by the 'Shot' command. The user reporting the issue made a couple of notes to avoid the crash using these steps. He mentions the cra ...

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. ...

EQS Generators named "NewBlueprint" cause errors and crash

UE - AI - Feb 11, 2015

Naming an EnvQueryGenerator_BlueprintBase derived BP "NewBlueprint" and deleting it causes new custom generators to not appear in the EQS. This can also lead to a crash when searching for the new ge ...

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 ...