Attempted to use an out of date DemoNetDriver when using DemoPlay through blueprints

UE - Networking - Oct 27, 2017

Users are not able to play a Demo in PIE using the Execute Console Command node to run the demoplay command. The following warning spams the output log while the demo is still trying to open:LogWor ...

UBlueprintFileUtilsBPLibrary is inaccessible through Python script

UE - Editor - Workflow Systems - Oct 7, 2020

The BlueprintFileUtilsBPLibrary API is not accessible through python scripts run in the editor. Attempting to run a script utilizing BplueprintFileUtilsBPLibrary results in:LogPython: Error: Traceb ...

EOS Voice plugin causes a crash after adding "DefaultPlatformService=EOS" to the DefaultEngine.ini then restarting the editor

UE - Online - Jan 10, 2022

This is not a regression. Doesn't affect UE5. The editor crashes on start up after enabling EOS Voice Chat, and updating the .ini to include DefaultPlatformService=EOS. Removing DefaultPlatformServ ...

Montage Section Links Don't Update When Section Deleted

UE - Anim - Gameplay - Mar 21, 2025

Hi there, I noticed that there is a problem with Montage Section links not updating when a section is deleted from a montage asset. We had a montage with a "Default" section and a "Loop" section. ...

Niagara Simulation Stage + DynamicMaterialParameters crash

UE - Niagara - Feb 6, 2021

deleting the code "&& SimulationStages[i]->bEnabled" in UNiagaraEmitter::GetScripts will bypass the problem [Image Removed] ...

OnClicked events do not trigger on objects 100k units away from camera

UE - Gameplay - Mar 26, 2015

Objects that are 100k uu+ away from camera do not trigger "OnClicked" events ...

LIVE: Some Chinese letters do not show when used with UMG when deployed to mobile

UE - Editor - UI Systems - Localization - Nov 7, 2014

When deploying a project to an Android device that uses UMG and Chinese text, Not all text is displayed when deployed to a mobile device ...

The number ordering in the Content Browser for assests is not showing in a correct order

UE - Editor - Content Pipeline - Content Browser - Jan 9, 2015

When naming assets in the Content browser, If you include a number within the name, as long as the name is the same as other Assets, the numbers will not be shown in ascending order. Included 2 ph ...

Debug is not functioning within the Blueprint Function Library

UE - Gameplay - Blueprint Editor - Jul 6, 2015

The blueprint debug filter is not working properly. It shows when your print string is being called but it isn't showing the trace location of the actual function from the blueprint. ...

LIVE: Changing a Custom Event to Multicast in a parent blueprint causes crash

UE - Gameplay - Blueprint - Nov 13, 2014

Changing a Custom Event to Multicast in a parent blueprint causes crash if the Custom Event is being used in the child blueprint. Callstack: MachineId:DE189244480D3CD0F8CA729A02DD38A6 UserName:tjb ...