Unreal Engine Issues

Crash when building lighting with a Basic shape in the level

Crash occurs when building the lighting with any Basic shape in the level. This crash occurs with Niagara plugin both enabled and disabled. This issue does not occur in 4.23 Issue only occurs on M ...

Dataprep crash when creating a parameter from a datatable asset or any asset

Opening blueprint debugger crashes editor

The editor crashes upon attempting to open the blueprint debugger through the Window menu. Frequency: 2/2 Regression (Yes) issue (does not) occur in 4.11.2 ...

Sequencer Playlist - Triggering a playlist will crash every other editor on a Multi-user session

[Link Removed] ...

Crash when launching a packaged project where a code class gets a reference to a Blueprint widget that contains an instance of a Blueprint struct

A packaged project will crash on launch if a code class uses ConstructorHelpers::FClassFinder to get a reference to a Blueprint Widget that contains a Blueprint struct variable. Disabling EDL in the ...

Setting a Niagara Bool parameter during runtime causes ensure and the parameter to not be read properly

Setting a Niagara Bool parameter during runtime causes ensure ...

Calling RequestStimuliListenerUpdate on actor with one element in AIPerception Sensing Config causes crash

If an AIPerception component is added to an actor and given one element set to either AI Hearing / AI Sight / AI Touch config then the game will crash once Request Stimuli Listener Update is called ...

Fill Data Table from CSV File crashes editor if the data table is open

Attempting to use the Fill Data Table from CSV File node will result in a crash if the CSV file is open when running. ...

Crash when adding a pawn that has a SetSenseEnabled node set to true on Begin Play and then playing the game

When adding the SetSenseEnabled node to a Pawn and controlling another pawn that has an AIPerceptionStiumuliSource, the editor crashes. I tested using other senses such as Hearing and the crash occu ...

iPadOS AR App Crashes when ARKit's "Use Scene Depth for Occlusion" is Enabled

Does not crash in 5.4 on same hardware so looks like a regression. Attached Unreal logs indicate source of critical error: 'FARKitCameraOverlayMobilePS' shader uniform expression set mismatched sh ...