Topics tagged null

Topic	Replies	Views	Activity
AnimNotifyState becomes NULL after restart and in package. Character & Animation question , packaging-projects , unreal-engine , null , notify , packaged-game	0	23	February 20, 2026
How do I clear a variable? Editor Scripting Blueprint , question , Variable , unreal-engine , null , actor	15	25355	May 20, 2025
Multiple Device Malfunctions: Class Selector, × Capture Area Device! × Teleporter, and Mutator, trackers, and More which Fail to Work Upon Private & Public Publication / Intermittenly in Editor Issues and Bug Reporting editor , bug-report , issue , team , device , Class , corrupt , null , publish , message-log , log , teleport , output-log , corrupted-project , fortnite , unreal-editor-for-fortnite , fortnite-creative	10	986	April 16, 2024
Object created with "CreateDefaultSubobject" null after copying blueprint asset in editor Programming & Scripting question , CPP , unreal-engine , null , constructors	1	611	February 25, 2024
Accessed None Trying to Read Property "ItemObject" Programming & Scripting Blueprint , question , error , unreal-engine , null , spawn-actor , custom-event	9	549	February 19, 2024
C++ Interface Cast returns NULL when implemented with Editor UI Blueprint , question , CPP , Code , interface , unreal-engine , null	9	8189	December 22, 2023
Critical Issue with UEFN engine, Null, String, Not Found Issues and Bug Reporting bug-report , Lighting , bug , error , package-error , null , string , day-night-cycle , ini , json , lighting-problem , log , compile-error , warning , launcher-error , linker-error , Packaging-Error , fortnite , unreal-editor-for-fortnite , fortnite-creative	0	445	November 4, 2023
Why do my widget's components become None when I make a child class from it? UI Blueprint , question , UI , unreal-engine , null	0	240	September 30, 2023
How to fix up object stuck at NULL in blueprint? Blueprint question , uobject , unreal-engine , Scripting , null , serialization , property-customizati	2	1692	September 18, 2022
Behavior tree is coming as null ptr AI question , unreal-engine , null	0	506	October 25, 2021
Call a method on server spawned actor on all clients Blueprint question , actors , Replication , unreal-engine , spawn , null , multicast	2	1361	October 20, 2021
Array item in SaveFile turns NULL Editor Scripting question , Variable , unreal-engine , null , save-file	1	645	October 1, 2021
NULL CharacterMovement component when switching from custom back to default C++ Blueprint , question , CPP , unreal-engine , null , charactermovementcom	3	963	September 8, 2021
Hard object reference to DataAsset is sometimes null in packaged build Editor Scripting question , unreal-engine , null , reference	6	3624	August 19, 2021
Failed to spawn player controller, GameSession is null Character & Animation question , bug , unreal-engine , playercontroller , null	5	2218	May 19, 2021
unreal material instance dynamic null,unreal material dynamic null Rendering question , UE4 , Materials , unreal-engine , null , binding	0	608	April 18, 2021
Intentionally setting StaticMeshComponent's mesh to null doesn't affect replicated clients Asset Creation question , Replication , unreal-engine , null , staticmeshcomponent	3	1569	March 3, 2021
Accessed none on actor reference that is getting passed around. Community & Industry Discussion question , unreal-engine , null , reference , Weapons , accessed-none	1	1420	June 27, 2016
用Spwan AIFrom Class 节点生成的蓝图和 Spwan ActorFromClass节点生成的蓝图在运行游戏时行为树中的Event Receive Execute returns PAWN却是空的？ AI Blueprint , question , AI , unreal-engine , pawn , null	0	423	September 25, 2019
TSubclassOf returning null UI question , CPP , hud , unreal-engine , null , Widget , tsubclassof	1	1971	June 1, 2019
[FEATURE REQUEST] Null Blueprint Node Blueprint Blueprint , question , unreal-engine , null	2	902	May 8, 2019
Seamless traveling when joining sessions Community & Industry Discussion question , unreal-engine , null , onlinesubsystem , seamless-travel , travel , sessions	0	576	March 29, 2019
Sequencer crash (access violation) Cinematics & Media Sequencer , question , crash , unreal-engine , null , access-violation	1	636	February 13, 2019
Get Streaming Level Return Null Blueprint Blueprint , question , UE4 , unreal-engine , null , streaming-level	1	985	January 18, 2019
Blueprints derived from c++ classes not updating properly Editor Scripting Blueprint , question , unreal-engine , null , reference , serialization	3	3771	October 16, 2018
UPROPERTY is null Blueprint question , unreal-engine , null , UProperty , tsubclassof , newobject	0	999	July 22, 2018
Same pointer is valid in BP but null in C++ Blueprint Blueprint , question , CPP , unreal-engine , null , pointer , nullptr	19	1668	May 14, 2018
ConvertRenderTargetToTexture2DEditorOnly: Texture must be non-null. Rendering Blueprint , question , texture , unreal-engine , null , convert	0	436	March 28, 2018
When spawning a c++ Actor from blueprint, why is the GetOwner and GetInstigator null? Blueprint question , unreal-engine , rotation , Scripting , null , UE4-11	1	979	February 14, 2018
Cannot join server hosted over VPN emulated LAN Multiplayer & Networking question , bug-report , unreal-engine , null , lan	1	1272	December 21, 2017

AnimNotifyState becomes NULL after restart and in package.

Character & Animation

question , packaging-projects , unreal-engine , null , notify , packaged-game

0

23

February 20, 2026

How do I clear a variable?

Editor Scripting

Blueprint , question , Variable , unreal-engine , null , actor

15

25355

May 20, 2025

Multiple Device Malfunctions: Class Selector, × Capture Area Device! × Teleporter, and Mutator, trackers, and More which Fail to Work Upon Private & Public Publication / Intermittenly in Editor

Issues and Bug Reporting

editor , bug-report , issue , team , device , Class , corrupt , null , publish , message-log , log , teleport , output-log , corrupted-project , fortnite , unreal-editor-for-fortnite , fortnite-creative

10

986

April 16, 2024

Object created with "CreateDefaultSubobject" null after copying blueprint asset in editor

Programming & Scripting

question , CPP , unreal-engine , null , constructors

1

611

February 25, 2024

Accessed None Trying to Read Property "ItemObject"

Programming & Scripting

Blueprint , question , error , unreal-engine , null , spawn-actor , custom-event

9

549

February 19, 2024

C++ Interface Cast returns NULL when implemented with Editor

UI

Blueprint , question , CPP , Code , interface , unreal-engine , null

9

8189

December 22, 2023

Critical Issue with UEFN engine, Null, String, Not Found

Issues and Bug Reporting

bug-report , Lighting , bug , error , package-error , null , string , day-night-cycle , ini , json , lighting-problem , log , compile-error , warning , launcher-error , linker-error , Packaging-Error , fortnite , unreal-editor-for-fortnite , fortnite-creative

0

445

November 4, 2023

Why do my widget's components become None when I make a child class from it?

UI

Blueprint , question , UI , unreal-engine , null

0

240

September 30, 2023

How to fix up object stuck at NULL in blueprint?

Blueprint

question , uobject , unreal-engine , Scripting , null , serialization , property-customizati