# Programming & Scripting **URL:** https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=13 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 14 --- ## [Linux Arm 64 problems when Packaged ](https://forums.unrealengine.com/t/linux-arm-64-problems-when-packaged/2842968)
**Author:** [@Th3\_green\_legend](https://forums.unrealengine.com/u/Th3_green_legend)\ **Replies:** 0\ **Last updated:** [October 20, 2026, 6:01pm UTC](https://forums.unrealengine.com/t/linux-arm-64-problems-when-packaged/2842968 "2026-10-20T18:01:43Z")
Hey every1 i hope some1 can help me cuz i am having one of the weirdest problems i ever had. The Situation: i bought a raspberry pi to make a portable console for my 2d Fighting game. Im coding on Unreal engine 5.5 wind… --- ## [Submitting UE4 dedicated server build to Playfab always gets unhealthy region.](https://forums.unrealengine.com/t/submitting-ue4-dedicated-server-build-to-playfab-always-gets-unhealthy-region/2841874)
**Author:** [@byvsen](https://forums.unrealengine.com/u/byvsen)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 5:22pm UTC](https://forums.unrealengine.com/t/submitting-ue4-dedicated-server-build-to-playfab-always-gets-unhealthy-region/2841874 "2026-10-20T17:22:39Z")
I was following this tutorial to try and learn how to get a dedicated server build on Playfab. It was going well and I was able to follow all the steps. However right at the very end when submitting the server build to … --- ## [Best VR Headset for Unreal Engine Development — What Are You Using?](https://forums.unrealengine.com/t/best-vr-headset-for-unreal-engine-development-what-are-you-using/2842619)
**Author:** [@JoyousTakin8185](https://forums.unrealengine.com/u/JoyousTakin8185)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 3:33pm UTC](https://forums.unrealengine.com/t/best-vr-headset-for-unreal-engine-development-what-are-you-using/2842619 "2026-10-20T15:33:14Z")
’m looking into VR headsets for Unreal Engine development and trying to figure out which one offers the best balance of visual quality, tracking, comfort, and performance. I’d mainly be interested in testing VR environme… --- ## [Iris does not allow the same object to be added to the different ReplicatedSubobjectLists](https://forums.unrealengine.com/t/iris-does-not-allow-the-same-object-to-be-added-to-the-different-replicatedsubobjectlists/2308717)
**Author:** [@Yihan\_Tarnis](https://forums.unrealengine.com/u/Yihan_Tarnis)\ **Replies:** 1\ **Last updated:** [October 20, 2026, 3:17pm UTC](https://forums.unrealengine.com/t/iris-does-not-allow-the-same-object-to-be-added-to-the-different-replicatedsubobjectlists/2308717 "2026-10-20T15:17:06Z")
Iris does not allow the same object to be added to the ReplicatedSubobjectList of different components belonging to different Actors , while the two Actors have the same owner PlayerController. This seems like a bug, be… --- ## [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… --- ## [Subobject Replication - Inventory System - Invalid items when originator is destroyed](https://forums.unrealengine.com/t/subobject-replication-inventory-system-invalid-items-when-originator-is-destroyed/1814993)
**Author:** [@the1928tommygun](https://forums.unrealengine.com/u/the1928tommygun)\ **Replies:** 3\ **Last updated:** [October 20, 2026, 3:11pm UTC](https://forums.unrealengine.com/t/subobject-replication-inventory-system-invalid-items-when-originator-is-destroyed/1814993 "2026-10-20T15:11:21Z")
I’m having trouble with replicated subobjects for an inventory system, and these results are very concerning. Hopefully someone can shed some light here: Two actors (A and B) with “ItemContainer” actor components Item… --- ## [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… --- ## [ML Deformer won't accept skeletal meshes created within Unreal Engine 5.8](https://forums.unrealengine.com/t/ml-deformer-wont-accept-skeletal-meshes-created-within-unreal-engine-5-8/2842621)
**Author:** [@robinjt](https://forums.unrealengine.com/u/robinjt)\ **Replies:** 3\ **Last updated:** [October 20, 2026, 3:05pm UTC](https://forums.unrealengine.com/t/ml-deformer-wont-accept-skeletal-meshes-created-within-unreal-engine-5-8/2842621 "2026-10-20T15:05:25Z")
Hi there, I have an annoying problem using the ML Deformer. My setup is: cube-like character created in-engine deformed using chaos flesh for jiggle. This works but is laggy, so advice is to use ML Deformer to train a … --- ## [Can't get Chaos Cache Manager to record character with chaos flesh deformation properly ](https://forums.unrealengine.com/t/cant-get-chaos-cache-manager-to-record-character-with-chaos-flesh-deformation-properly/2841908)
**Author:** [@robinjt](https://forums.unrealengine.com/u/robinjt)\ **Replies:** 3\ **Last updated:** [October 20, 2026, 2:59pm UTC](https://forums.unrealengine.com/t/cant-get-chaos-cache-manager-to-record-character-with-chaos-flesh-deformation-properly/2841908 "2026-10-20T14:59:36Z")
Hi there, I’m having a lot of trouble recording my chaos flesh asset that’s attached to my main character. The character is a jiggly cube essentially, with flesh asset kinematic attachment to the bottom cube face vertic… --- ## [Background and Foreground intense blur with Cinematic camera for gameplay?](https://forums.unrealengine.com/t/background-and-foreground-intense-blur-with-cinematic-camera-for-gameplay/2842412)
**Author:** [@WillMead13](https://forums.unrealengine.com/u/WillMead13)\ **Replies:** 3\ **Last updated:** [October 20, 2026, 1:54pm UTC](https://forums.unrealengine.com/t/background-and-foreground-intense-blur-with-cinematic-camera-for-gameplay/2842412 "2026-10-20T13:54:37Z")
Hi there! I’m trying to add just a simple strong blur to the background and maybe foreground too for my local coop platformer, however with the regular camera, there are visual glitches and errors with blur on both scre… --- ## [tangent at distance along spline not correct?](https://forums.unrealengine.com/t/tangent-at-distance-along-spline-not-correct/2159990)
**Author:** [@AlexSabbioni](https://forums.unrealengine.com/u/AlexSabbioni)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 5:45am UTC](https://forums.unrealengine.com/t/tangent-at-distance-along-spline-not-correct/2159990 "2026-10-20T05:45:27Z")
Hi guys I’ve got a circle spline (not closed) of 4 points and based of a mesh density int varaible I do the math and I’ve got an equal amount of distance along the spline where I add my spline meshes from this distance… --- ## [ Replication of the Object Reference through RepNotify](https://forums.unrealengine.com/t/replication-of-the-object-reference-through-repnotify/1989751)
**Author:** [@TheDuckInAHat](https://forums.unrealengine.com/u/TheDuckInAHat)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 5:31am UTC](https://forums.unrealengine.com/t/replication-of-the-object-reference-through-repnotify/1989751 "2026-10-20T05:31:03Z")
Hello, I have a variable of type Object Reference. It is set to Replicate through RepNotify. During OnRep I simply print string that says "replicated. Then, from the Server I set the variable to something else. W… --- ## [I'm having a huge problem on standalone replication](https://forums.unrealengine.com/t/im-having-a-huge-problem-on-standalone-replication/2842626)
**Author:** [@ispaterno](https://forums.unrealengine.com/u/ispaterno)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 3:23am UTC](https://forums.unrealengine.com/t/im-having-a-huge-problem-on-standalone-replication/2842626 "2026-10-20T03:23:59Z")
to summarize, I would say I’m making a coop game, where players can join friends on their saves. the way I’m handling accounts atm is merely cosmetic, since I want to develop it as agnostic to EOS or SteamOS as possible… --- ## [Copy Full OS Path of an Asset in Content Browser to clipboard](https://forums.unrealengine.com/t/copy-full-os-path-of-an-asset-in-content-browser-to-clipboard/2566532)
**Author:** [@Hard\_Duck](https://forums.unrealengine.com/u/Hard_Duck)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 12:43am UTC](https://forums.unrealengine.com/t/copy-full-os-path-of-an-asset-in-content-browser-to-clipboard/2566532 "2026-10-20T00:43:01Z")
Hi! I am currently transitioning from Unity to Unreal, and I wonder if there is a function, or if not, an add on or common script that would let a user copy the Full OS path of an asset in the Content Browser? For Unity… --- ## [Static Mesh not showing properly](https://forums.unrealengine.com/t/static-mesh-not-showing-properly/2839869)
**Author:** [@OHyperrr](https://forums.unrealengine.com/u/OHyperrr)\ **Replies:** 2\ **Last updated:** [October 19, 2026, 10:22pm UTC](https://forums.unrealengine.com/t/static-mesh-not-showing-properly/2839869 "2026-10-19T22:22:00Z")
My static mesh appears exactly how it should in all the viewports except when I add it to a blueprint? Most of the mesh loads except for some chain holders, Pictures below. Blueprint ^^ StaticMesh ^^ --- ## [Drag a widget unto the HUD](https://forums.unrealengine.com/t/drag-a-widget-unto-the-hud/2841891)
**Author:** [@Michellembrodeur](https://forums.unrealengine.com/u/Michellembrodeur)\ **Replies:** 2\ **Last updated:** [October 19, 2026, 8:56pm UTC](https://forums.unrealengine.com/t/drag-a-widget-unto-the-hud/2841891 "2026-10-19T20:56:42Z")
If anyone can remember UO (Ultimate Online) I have a spell book, with spells. I want to drag a spell widget(copy) from the book unto the HUD. So the user can click(Highlight the spell) and is ready to cast. The player ca… --- ## [ Place traps in Fortnite/UEFN ](https://forums.unrealengine.com/t/place-traps-in-fortnite-uefn/2842147)
**Author:** [@7MAPS](https://forums.unrealengine.com/u/7MAPS)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 7:23pm UTC](https://forums.unrealengine.com/t/place-traps-in-fortnite-uefn/2842147 "2026-10-19T19:23:28Z")
Sometimes when I place a spike trap in Creative mode, it works—but other times, it simply cannot be placed on a surface at all, or the trap suddenly turns red! Please help; I don’t know what to do. --- ## [Everytime I load into a game, I get kicked out after like 45s and I get this message ](https://forums.unrealengine.com/t/everytime-i-load-into-a-game-i-get-kicked-out-after-like-45s-and-i-get-this-message/2841752)
**Author:** [@Genesis2](https://forums.unrealengine.com/u/Genesis2)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 7:02pm UTC](https://forums.unrealengine.com/t/everytime-i-load-into-a-game-i-get-kicked-out-after-like-45s-and-i-get-this-message/2841752 "2026-10-19T19:02:02Z")
As the title says, this appears after I get kicked out. I don’t use a VPN (that I know of at least) and my internet works extremely well. I don’t use cheats either, so I’m not sure why it’s doing this to me. Please help … --- ## [Loading obj or fbx files during runtime?](https://forums.unrealengine.com/t/loading-obj-or-fbx-files-during-runtime/556811)
**Author:** [@NoderaidergamesS](https://forums.unrealengine.com/u/NoderaidergamesS)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 3:59pm UTC](https://forums.unrealengine.com/t/loading-obj-or-fbx-files-during-runtime/556811 "2026-10-19T15:59:23Z")
build your project, you drag and drop a fbx file or obj file into a folder, when you load up your game is there a way that the game detect new objects? My idea was being able to have people load in custom obj fbx files t… --- ## [Trying to import a PNG file from a local folder during runtime to display on a widget](https://forums.unrealengine.com/t/trying-to-import-a-png-file-from-a-local-folder-during-runtime-to-display-on-a-widget/1918491)
**Author:** [@SOLDIEROSCAR](https://forums.unrealengine.com/u/SOLDIEROSCAR)\ **Replies:** 5\ **Last updated:** [October 19, 2026, 3:56pm UTC](https://forums.unrealengine.com/t/trying-to-import-a-png-file-from-a-local-folder-during-runtime-to-display-on-a-widget/1918491 "2026-10-19T15:56:20Z")
Trying to import a PNG file from a local folder during runtime to display on a widget So far I have a way for the user to select the file, and I take that file directory and name and I append a “File://” to the front of… --- ## [FPlatformApplicationMisc::ClipboardCopy() fails to link](https://forums.unrealengine.com/t/fplatformapplicationmisc-clipboardcopy-fails-to-link/111083)
**Author:** [@Whammy](https://forums.unrealengine.com/u/Whammy)\ **Replies:** 8\ **Last updated:** [October 19, 2026, 3:50pm UTC](https://forums.unrealengine.com/t/fplatformapplicationmisc-clipboardcopy-fails-to-link/111083 "2026-10-19T15:50:24Z")
I’ve been taking care of all the deprecated warnings in my 4.18 code and changed “FGenericPlatformMisc::ClipboardCopy()” to “FPlatformApplicationMisc::ClipboardCopy()” as demanded by the compiler. It compiles fine, but r… --- ## [I'm looking for a control menu plugin which supports rebinding axes](https://forums.unrealengine.com/t/im-looking-for-a-control-menu-plugin-which-supports-rebinding-axes/2622679)
**Author:** [@KermanFooFoo](https://forums.unrealengine.com/u/KermanFooFoo)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 3:47pm UTC](https://forums.unrealengine.com/t/im-looking-for-a-control-menu-plugin-which-supports-rebinding-axes/2622679 "2026-10-19T15:47:39Z")
I’ve found at least two plugins which offer out-of-the-box key rebinding menus. However, neither they seem to support rebinding axis controls, such as mouse movement or joysticks. Does anyone know of a plugin which provi… --- ## [Save File Dialog in UE4 results in crashes](https://forums.unrealengine.com/t/save-file-dialog-in-ue4-results-in-crashes/450341)
**Author:** [@Gamji](https://forums.unrealengine.com/u/Gamji)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 1:44pm UTC](https://forums.unrealengine.com/t/save-file-dialog-in-ue4-results-in-crashes/450341 "2026-10-19T13:44:40Z")
Hi all, So I’ve recently been trying to implement a windows SaveFileDialog to a UE4 project. Using khalibloo’s implementation in this post, I managed to get it fully working. Now although it works as it should, it somet… --- ## [ActionRPG sample upgraded to UE5.3 (5.4 & 5.5)](https://forums.unrealengine.com/t/actionrpg-sample-upgraded-to-ue5-3-5-4-5-5/1722389)
**Author:** [@Vahab](https://forums.unrealengine.com/u/Vahab)\ **Replies:** 29\ **Last updated:** [October 19, 2026, 1:20pm UTC](https://forums.unrealengine.com/t/actionrpg-sample-upgraded-to-ue5-3-5-4-5-5/1722389 "2026-10-19T13:20:55Z")
Action RPG Sample is an excellent resource for learning the Gameplay Ability System. I upgraded it to Unreal 5.3 and replaced the legacy input with the Enhanced Input system. Here is the Github link: ActionRPG Unreal 5… --- ## [Regarding "Verse," the new language for Unreal 6, they say it is intended to address issues with AI development in Blueprints.](https://forums.unrealengine.com/t/regarding-verse-the-new-language-for-unreal-6-they-say-it-is-intended-to-address-issues-with-ai-development-in-blueprints/2839938)
**Author:** [@Online\_Learner\_6gPkP](https://forums.unrealengine.com/u/Online_Learner_6gPkP)\ **Replies:** 6\ **Last updated:** [October 19, 2026, 11:30am UTC](https://forums.unrealengine.com/t/regarding-verse-the-new-language-for-unreal-6-they-say-it-is-intended-to-address-issues-with-ai-development-in-blueprints/2839938 "2026-10-19T11:30:08Z")
My point is that, at this stage, C++ or C# could easily serve as alternatives. After all, we already see plenty of shoddy, AI-generated content; I don’t understand why they would abandon the massive ecosystem surrounding… --- ## [How to open a file dialog using blueprints](https://forums.unrealengine.com/t/how-to-open-a-file-dialog-using-blueprints/367352)
**Author:** [@anonymous\_user\_4630e8a0](https://forums.unrealengine.com/u/anonymous_user_4630e8a0)\ **Replies:** 3\ **Last updated:** [October 19, 2026, 11:06am UTC](https://forums.unrealengine.com/t/how-to-open-a-file-dialog-using-blueprints/367352 "2026-10-19T11:06:28Z")
Hi, I googled and found this, but is there a way to do it using blueprint? And at the end of above link, i noticed this: Funny that I only found this now. This does not work in a packaged build, so it’s effectively u… --- ## [\[PROBLEM\] - POST PROCESS - Volume Material Overrides Camera/Post Process Component Effects](https://forums.unrealengine.com/t/problem-post-process-volume-material-overrides-camera-post-process-component-effects/2842345)
**Author:** [@Stolcjan](https://forums.unrealengine.com/u/Stolcjan)\ **Replies:** 2\ **Last updated:** [October 19, 2026, 10:53am UTC](https://forums.unrealengine.com/t/problem-post-process-volume-material-overrides-camera-post-process-component-effects/2842345 "2026-10-19T10:53:25Z")
I’m working on a project in Unreal Engine and I’m having trouble combining a global Post Process Volume material with additional post-process effects applied to the player camera/player body. My current setup: I have… --- ## [Using ClientTravel with Steam Loads Incorrect Level ](https://forums.unrealengine.com/t/using-clienttravel-with-steam-loads-incorrect-level/2733274)
**Author:** [@BeehiveStudios](https://forums.unrealengine.com/u/BeehiveStudios)\ **Replies:** 2\ **Last updated:** [October 19, 2026, 10:41am UTC](https://forums.unrealengine.com/t/using-clienttravel-with-steam-loads-incorrect-level/2733274 "2026-10-19T10:41:25Z")
I’m trying to get a basic multi-player setup working with UE and Steam. I am using UE 5.8 with C++, Online Subsystem, Steam Sockets and Seamless Travel. I’ve started with the third person shooter project, created three m… --- ## [Are Blueprint Class Local Player Subsystems supported? ](https://forums.unrealengine.com/t/are-blueprint-class-local-player-subsystems-supported/2607795)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [October 19, 2026, 8:44am UTC](https://forums.unrealengine.com/t/are-blueprint-class-local-player-subsystems-supported/2607795 "2026-10-19T08:44:33Z")
Hi, I am making a Local Player Subsystem, where it initializes a system of a type. I have made it so I can define the specific type in a blueprint, but if I don’t open that blueprint before I play my game in editor the … --- ## [Unreal seems to be hard coded to block file dialogs?](https://forums.unrealengine.com/t/unreal-seems-to-be-hard-coded-to-block-file-dialogs/2023210)
**Author:** [@crossmr](https://forums.unrealengine.com/u/crossmr)\ **Replies:** 4\ **Last updated:** [October 19, 2026, 8:26am UTC](https://forums.unrealengine.com/t/unreal-seems-to-be-hard-coded-to-block-file-dialogs/2023210 "2026-10-19T08:26:58Z")
So, purchased this plugin for 5.3 to open pdfs. Great plugin, has an ‘open’ button that lets you pick a file with a file dialog. Saw the demo of it working, but when I tried it I got this error saying ‘Filedialogs are pr… [Previous page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=12) [Next page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=14)