# \#Replication **URL:** https://forums.unrealengine.com/tag/replication/196.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Replication of Character Ref in Player State](https://forums.unrealengine.com/t/replication-of-character-ref-in-player-state/2851537)
**Author:** [@Space\_Grouse](https://forums.unrealengine.com/u/Space_Grouse)\ **Replies:** 5\ **Last updated:** [November 7, 2026, 5:33pm UTC](https://forums.unrealengine.com/t/replication-of-character-ref-in-player-state/2851537 "2026-11-07T17:33:59Z")
I think I’m improperly using a reference to the player character inside the player state to replicate character customization. In the player character BP I created material instances. I created an actor component, name… --- ## [Previous Value of Replicated FFastArray empty ](https://forums.unrealengine.com/t/previous-value-of-replicated-ffastarray-empty/2720014)
**Author:** [@darkfire1321](https://forums.unrealengine.com/u/darkfire1321)\ **Replies:** 2\ **Last updated:** [October 21, 2026, 3:53pm UTC](https://forums.unrealengine.com/t/previous-value-of-replicated-ffastarray-empty/2720014 "2026-10-21T15:53:56Z")
Hello! I’ve been running into an odd bug with the previous value of the OnRep function parameter. I have a struct that inherits FFastArraySerializer that I have replicated to owners in an Actor Component. The actual rep… --- ## [Adding to SubObject list in Constructor causing reference exception](https://forums.unrealengine.com/t/adding-to-subobject-list-in-constructor-causing-reference-exception/2409833)
**Author:** [@Kotaru\_1](https://forums.unrealengine.com/u/Kotaru_1)\ **Replies:** 2\ **Last updated:** [October 21, 2026, 1:01pm UTC](https://forums.unrealengine.com/t/adding-to-subobject-list-in-constructor-causing-reference-exception/2409833 "2026-10-21T13:01:01Z")
I’m following this guide on SubObject replication, but I ran into this issue that I’m not understanding The guide says to add the following to the Actor’s constructor if(IsValid(MyActorSubobject)) { … --- ## [TMap not working on client in online/replication](https://forums.unrealengine.com/t/tmap-not-working-on-client-in-online-replication/2361157)
**Author:** [@Chevidal451](https://forums.unrealengine.com/u/Chevidal451)\ **Replies:** 9\ **Last updated:** [October 21, 2026, 11:50am UTC](https://forums.unrealengine.com/t/tmap-not-working-on-client-in-online-replication/2361157 "2026-10-21T11:50:47Z")
Recently I saw that TMap was not replicated for Unreal, but if I dont want to replicate it, I just want to make calculations with the TMap structure and then if I want to replicate I will move the data to a particular st… --- ## [Replication for UI/Health comp](https://forums.unrealengine.com/t/replication-for-ui-health-comp/2739329)
**Author:** [@Bushwookie69](https://forums.unrealengine.com/u/Bushwookie69)\ **Replies:** 4\ **Last updated:** [October 21, 2026, 9:17am UTC](https://forums.unrealengine.com/t/replication-for-ui-health-comp/2739329 "2026-10-21T09:17:59Z")
I’m new to replication and multiplayer so maybe im missing something simple here. I have a HUD that on startup spawns the characters UI and makes a reference to it call “Main widget ref”. Then once selecting team and sp… --- ## [\[Replicating TArray of UObjects\] Cannot get TArray\ to replicate from within custom ActorComponent.](https://forums.unrealengine.com/t/replicating-tarray-of-uobjects-cannot-get-tarray-uitemobject-to-replicate-from-within-custom-actorcomponent/1262941)
**Author:** [@Jacob\_Odell](https://forums.unrealengine.com/u/Jacob_Odell)\ **Replies:** 7\ **Last updated:** [October 20, 2026, 7:07pm UTC](https://forums.unrealengine.com/t/replicating-tarray-of-uobjects-cannot-get-tarray-uitemobject-to-replicate-from-within-custom-actorcomponent/1262941 "2026-10-20T19:07:25Z")
Hello, I’m having an issue with getting a TArray of custom ItemObjects to replicate after the initial client load (it does when a client loads, but does not replicate after that). I am successfully adding ItemObjects to… --- ## [RepNotify not triggering when modifying a subobject in an array](https://forums.unrealengine.com/t/repnotify-not-triggering-when-modifying-a-subobject-in-an-array/1916555)
**Author:** [@Ashley\_Roesler](https://forums.unrealengine.com/u/Ashley_Roesler)\ **Replies:** 1\ **Last updated:** [October 20, 2026, 3:14pm UTC](https://forums.unrealengine.com/t/repnotify-not-triggering-when-modifying-a-subobject-in-an-array/1916555 "2026-10-20T15:14:12Z")
I have an actor component. The actor component has a TArray of UMyObject\* (UMyObject derives from UObject). The array is declared like this: UPROPERTY(ReplicatedUsing = OnRep\_MyArrayUpdate, EditAnywhere, BlueprintReadWr… --- ## [UObject replication problem in non player actor](https://forums.unrealengine.com/t/uobject-replication-problem-in-non-player-actor/2692841)
**Author:** [@Ngenion](https://forums.unrealengine.com/u/Ngenion)\ **Replies:** 4\ **Last updated:** [October 20, 2026, 3:08pm UTC](https://forums.unrealengine.com/t/uobject-replication-problem-in-non-player-actor/2692841 "2026-10-20T15:08:22Z")
Hello! I have an actor for chestbox - ABChestbox. It includes actorComponent UInventory\* inventory. UInventory have TArray (UInventoryItem) items; UInventoryItem = child of UObject All replication rules are checked, fo… --- ## [Side-Scroller Shooter, how do I replicate mouse rotation?](https://forums.unrealengine.com/t/side-scroller-shooter-how-do-i-replicate-mouse-rotation/435934)
**Author:** [@anonymous\_user\_6decf5ce](https://forums.unrealengine.com/u/anonymous_user_6decf5ce)\ **Replies:** 1\ **Last updated:** [October 18, 2026, 4:34pm UTC](https://forums.unrealengine.com/t/side-scroller-shooter-how-do-i-replicate-mouse-rotation/435934 "2026-10-18T16:34:33Z")
Hi, I am making a Side-Scroller Shooter. I was able to replicate many things to multiplayer, except for this controller scheme that works fine in singleplayer, but that I simply could not get it to work in multiplayer I… --- ## [PoolKit: reduce spawn and destroy cost with drop-in pooling (UE 5.4-5.8)](https://forums.unrealengine.com/t/poolkit-reduce-spawn-and-destroy-cost-with-drop-in-pooling-ue-5-4-5-8/2838305)
**Author:** [@BWGGames](https://forums.unrealengine.com/u/BWGGames)\ **Replies:** 0\ **Last updated:** [October 7, 2026, 3:39pm UTC](https://forums.unrealengine.com/t/poolkit-reduce-spawn-and-destroy-cost-with-drop-in-pooling-ue-5-4-5-8/2838305 "2026-10-07T15:39:58Z")
PoolKit is a pooling plugin from our small studio, Barbed Wire Glove Games. Swap Spawn Actor from Class for Spawn Actor From Pool and Destroy Actor for Release Actor To Pool. No manager actor, base class or interface. It… --- ## [Grab Object Replication Problem](https://forums.unrealengine.com/t/grab-object-replication-problem/1641716)
**Author:** [@Kamilowskyy](https://forums.unrealengine.com/u/Kamilowskyy)\ **Replies:** 1\ **Last updated:** [October 7, 2026, 12:14pm UTC](https://forums.unrealengine.com/t/grab-object-replication-problem/1641716 "2026-10-07T12:14:11Z")
Hello, I’m trying to make a pick up, holding system for my game. Simple system, basically when I click E button then I am able to hold an object and move with it. I was using this tutorial to do the pick up system … --- ## [Crouch functions not replicating correctly](https://forums.unrealengine.com/t/crouch-functions-not-replicating-correctly/2836895)
**Author:** [@Space\_Grouse](https://forums.unrealengine.com/u/Space_Grouse)\ **Replies:** 9\ **Last updated:** [October 4, 2026, 9:10pm UTC](https://forums.unrealengine.com/t/crouch-functions-not-replicating-correctly/2836895 "2026-10-04T21:10:09Z")
I am using the default crouching functions, which everything I’ve read says should handle replication on its own, but for some reason it doesn’t work in my project. If the host crouches everything works fine, but if the … --- ## [client predicted physics replication ](https://forums.unrealengine.com/t/client-predicted-physics-replication/2754184)
**Author:** [@Kiala](https://forums.unrealengine.com/u/Kiala)\ **Replies:** 0\ **Last updated:** [September 2, 2026, 3:55pm UTC](https://forums.unrealengine.com/t/client-predicted-physics-replication/2754184 "2026-09-02T15:55:53Z")
Hello there. I am trying to make client side predicted car using ue5’s default physics replication as a reconciliation. I find it usefull that way even though its not all builded for this kind of purpose. But i usuall am… --- ## [RepNotify not working?](https://forums.unrealengine.com/t/repnotify-not-working/1277983)
**Author:** [@Phyrriel](https://forums.unrealengine.com/u/Phyrriel)\ **Replies:** 20\ **Last updated:** [September 2, 2026, 1:56pm UTC](https://forums.unrealengine.com/t/repnotify-not-working/1277983 "2026-09-02T13:56:45Z")
So I’ve been learning how multiplayer works and I thought I had a decent understanding on how to setup everything and the importances of knowing when to use RPC’s vs RepNotify. I’ve been testing making my character hold … --- ## [What kind of Subsystems are replicated?](https://forums.unrealengine.com/t/what-kind-of-subsystems-are-replicated/480488)
**Author:** [@Bionic\_Ape](https://forums.unrealengine.com/u/Bionic_Ape)\ **Replies:** 12\ **Last updated:** [September 2, 2026, 9:06am UTC](https://forums.unrealengine.com/t/what-kind-of-subsystems-are-replicated/480488 "2026-09-02T09:06:33Z")
Subsystems are really cool, they keep things organized. But I don’t know how and when use them for replication. Engine? I don’t see how this would be replicated. Editor? I’m sure this is not replicated. GameInstance? … --- ## [Global Time Dilation affects replication](https://forums.unrealengine.com/t/global-time-dilation-affects-replication/401070)
**Author:** [@VitorCBSB](https://forums.unrealengine.com/u/VitorCBSB)\ **Replies:** 3\ **Last updated:** [August 8, 2026, 5:58pm UTC](https://forums.unrealengine.com/t/global-time-dilation-affects-replication/401070 "2026-08-08T17:58:01Z")
I’ve been using global time dilations for some gameplay related things. One of the things I noticed is that replication seemed to go out of “sync” whenever it was altered. That prompted me to study it further, and appare… --- ## [Incorrect networking role for Actors during possession swaps when using push model](https://forums.unrealengine.com/t/incorrect-networking-role-for-actors-during-possession-swaps-when-using-push-model/2720909)
**Author:** [@thecheneysays](https://forums.unrealengine.com/u/thecheneysays)\ **Replies:** 2\ **Last updated:** [August 5, 2026, 2:38pm UTC](https://forums.unrealengine.com/t/incorrect-networking-role-for-actors-during-possession-swaps-when-using-push-model/2720909 "2026-08-05T14:38:12Z")
I believe I’ve found an edge case for Push Model Replication that causes Actors to be in the incorrect Network Role when swapping possession. This is similar to UE-66313, but only when Push Model is enabled and Actors wi… --- ## [Ragdoll replication ](https://forums.unrealengine.com/t/ragdoll-replication/2692120)
**Author:** [@Fellor1s](https://forums.unrealengine.com/u/Fellor1s)\ **Replies:** 8\ **Last updated:** [July 11, 2026, 7:40pm UTC](https://forums.unrealengine.com/t/ragdoll-replication/2692120 "2026-07-11T19:40:24Z")
Hey guys, I need your help. How can I replicate a ragdoll in UE5.5? --- ## [JSON objects replication](https://forums.unrealengine.com/t/json-objects-replication/1233512)
**Author:** [@Anilarion](https://forums.unrealengine.com/u/Anilarion)\ **Replies:** 2\ **Last updated:** [June 5, 2026, 2:49pm UTC](https://forums.unrealengine.com/t/json-objects-replication/1233512 "2026-06-05T14:49:08Z")
I want to create an inventory system based on Json in a multiplayer project. Initially, I tried to replicate the Json object, but it doesn’t replicate. Do you have any idea how to do it? Thank you! --- ## [Replicating a physical grabbing system, and jittery movement for clients grabbing the object.](https://forums.unrealengine.com/t/replicating-a-physical-grabbing-system-and-jittery-movement-for-clients-grabbing-the-object/2725711)
**Author:** [@o0.Charon.0o](https://forums.unrealengine.com/u/o0.Charon.0o)\ **Replies:** 5\ **Last updated:** [June 3, 2026, 5:49pm UTC](https://forums.unrealengine.com/t/replicating-a-physical-grabbing-system-and-jittery-movement-for-clients-grabbing-the-object/2725711 "2026-06-03T17:49:47Z")
Hello everyone. First of all, I use UE4.27 → can’t run UE5 on my potato pc :slight\_smile: I’m trying to make a multiplayer, physics-based grab system where objects move differently depending on their mass. I tried phys… --- ## [Looking for Battle Testers for Gorgeous Core (Before Fab Launch)](https://forums.unrealengine.com/t/looking-for-battle-testers-for-gorgeous-core-before-fab-launch/2721677)
**Author:** [@Wave.Epgenix](https://forums.unrealengine.com/u/Wave.Epgenix)\ **Replies:** 0\ **Last updated:** [May 12, 2026, 7:56pm UTC](https://forums.unrealengine.com/t/looking-for-battle-testers-for-gorgeous-core-before-fab-launch/2721677 "2026-05-12T19:56:52Z")
Hey everyone, I’m currently preparing Gorgeous Core for its upcoming Fab release and I’m looking for Unreal Engine developers willing to help battle test the foundation plugin before launch. The goal is simple: stress … --- ## [I’m experiencing a major multiplayer replication/RPC issue](https://forums.unrealengine.com/t/i-m-experiencing-a-major-multiplayer-replication-rpc-issue/2703271)
**Author:** [@BioFrost.in](https://forums.unrealengine.com/u/BioFrost.in)\ **Replies:** 2\ **Last updated:** [May 1, 2026, 2:19pm UTC](https://forums.unrealengine.com/t/i-m-experiencing-a-major-multiplayer-replication-rpc-issue/2703271 "2026-05-01T14:19:33Z")
Previously, everything was working correctly using Run on Server RPCs. Weapon equip, firing, inventory interactions, and crafting were all functioning properly in multiplayer. However, suddenly all systems that rely on R… --- ## [CF3 Interaction Authority — UE5 Multiplayer Interaction System with Late-Join Proof ](https://forums.unrealengine.com/t/cf3-interaction-authority-ue5-multiplayer-interaction-system-with-late-join-proof/2719307)
**Author:** [@Stark3y933](https://forums.unrealengine.com/u/Stark3y933)\ **Replies:** 0\ **Last updated:** [April 30, 2026, 11:39pm UTC](https://forums.unrealengine.com/t/cf3-interaction-authority-ue5-multiplayer-interaction-system-with-late-join-proof/2719307 "2026-04-30T23:39:21Z")
Hi everyone, This is CF3 Systems. I’ve released CF3 Interaction Authority, a UE5 multiplayer interaction system focused on server authoritative validation, replicated state, and late-join-safe interaction examples. Th… --- ## [How to sustain actor state in world partition on multiplayer game?](https://forums.unrealengine.com/t/how-to-sustain-actor-state-in-world-partition-on-multiplayer-game/2711156)
**Author:** [@Anonymous\_2210d72d3515234552b42f64ab1279fd](https://forums.unrealengine.com/u/Anonymous_2210d72d3515234552b42f64ab1279fd)\ **Replies:** 1\ **Last updated:** [April 3, 2026, 11:14am UTC](https://forums.unrealengine.com/t/how-to-sustain-actor-state-in-world-partition-on-multiplayer-game/2711156 "2026-04-03T11:14:00Z")
Hi I need sustain actor state across game play time, like loot box, in world partition on multiplayer. Problem is when ever reload partition that actor actually spawn as like new one. Is there any solution for like thi… --- ## [\[UE 5.4 Preview 1\] Mover 2.0 and GAS](https://forums.unrealengine.com/t/ue-5-4-preview-1-mover-2-0-and-gas/1780825)
**Author:** [@Sputnick](https://forums.unrealengine.com/u/Sputnick)\ **Replies:** 6\ **Last updated:** [March 13, 2026, 4:15pm UTC](https://forums.unrealengine.com/t/ue-5-4-preview-1-mover-2-0-and-gas/1780825 "2026-03-13T16:15:29Z")
Hi, I’m relatively new to UE in general, but the announcement of 5.4 and the preview release made me want to try out the Mover 2.0 plugin. Transferring my old pretty barebones third person character to the new mover co… --- ## [Help me decide on a replication architecture for my card game](https://forums.unrealengine.com/t/help-me-decide-on-a-replication-architecture-for-my-card-game/2703414)
**Author:** [@SkankHunt1000](https://forums.unrealengine.com/u/SkankHunt1000)\ **Replies:** 1\ **Last updated:** [March 4, 2026, 2:58am UTC](https://forums.unrealengine.com/t/help-me-decide-on-a-replication-architecture-for-my-card-game/2703414 "2026-03-04T02:58:46Z")
Requirements: It’s a card game. BP\_Card is my card actor that the user sees visually on the screen. It has card game things like card art, card text, a cost, etc. There are 4 players, each player has a private Hand and… --- ## [ActorComponent GetOwner() returns wrong character on clients (owners appear swapped)](https://forums.unrealengine.com/t/actorcomponent-getowner-returns-wrong-character-on-clients-owners-appear-swapped/2702929)
**Author:** [@BioFrost.in](https://forums.unrealengine.com/u/BioFrost.in)\ **Replies:** 5\ **Last updated:** [March 3, 2026, 12:37am UTC](https://forums.unrealengine.com/t/actorcomponent-getowner-returns-wrong-character-on-clients-owners-appear-swapped/2702929 "2026-03-03T00:37:20Z")
Hi, I’m having a very strange issue with my multiplayer inventory system and I’d really appreciate some insight. Previously, everything was working correctly. However, I’m now experiencing a replication/ownership issu… --- ## [Replication - Throwing Object](https://forums.unrealengine.com/t/replication-throwing-object/2695539)
**Author:** [@Zangdai](https://forums.unrealengine.com/u/Zangdai)\ **Replies:** 13\ **Last updated:** [February 18, 2026, 6:54pm UTC](https://forums.unrealengine.com/t/replication-throwing-object/2695539 "2026-02-18T18:54:15Z")
I am actually stuck in my multiplayer project : a bloodbowl like. I can’t make a good throwing ball system. The first player who picks up the ball: no problem. He can throw it, but problems happen here: the player throw… --- ## [Replication issue with widget component](https://forums.unrealengine.com/t/replication-issue-with-widget-component/2699165)
**Author:** [@Muji17](https://forums.unrealengine.com/u/Muji17)\ **Replies:** 3\ **Last updated:** [February 16, 2026, 2:47am UTC](https://forums.unrealengine.com/t/replication-issue-with-widget-component/2699165 "2026-02-16T02:47:45Z")
I have a widget component on a blueprint actor that players can interact in for a lobby. They click a ready button on a computer to ready up in the game. I am using a listen server and the client and host are both able t… --- ## [C++ replication crash.](https://forums.unrealengine.com/t/c-replication-crash/1704019)
**Author:** [@NaranjaJuyas](https://forums.unrealengine.com/u/NaranjaJuyas)\ **Replies:** 1\ **Last updated:** [February 13, 2026, 6:24pm UTC](https://forums.unrealengine.com/t/c-replication-crash/1704019 "2026-02-13T18:24:40Z")
Hi guys, Im trying to create a simple Actor with replication. This is my header file #pragma once #include "CoreMinimal.h" #include "GameFramework/Actor.h" #include "Clock.generated.h" UCLASS() class VISUALTEST\_API … [Next page](https://forums.unrealengine.com/tag/replication/196.md?match_all_tags=true&page=1&tags%5B%5D=Replication)