# Programming & Scripting **URL:** https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=2 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 3 --- ## [Publishing blocked by “Experimental Editor Settings” although no experimental feature is enabled ](https://forums.unrealengine.com/t/publishing-blocked-by-experimental-editor-settings-although-no-experimental-feature-is-enabled/2853500)
**Author:** [@RAYOU\_MINI](https://forums.unrealengine.com/u/RAYOU_MINI)\ **Replies:** 0\ **Last updated:** [November 10, 2026, 6:12pm UTC](https://forums.unrealengine.com/t/publishing-blocked-by-experimental-editor-settings-although-no-experimental-feature-is-enabled/2853500 "2026-11-10T18:12:42Z")
Summary I can’t publish my island. The private version validation on the Creator Portal always fails on “Experimental Features – Experimental Editor Settings”, but no experimental feature is enabled in my project, and t… --- ## [Custom Item Abilities Randomly Fail to Activate Using the New Ability System in UEFN ](https://forums.unrealengine.com/t/custom-item-abilities-randomly-fail-to-activate-using-the-new-ability-system-in-uefn/2853497)
**Author:** [@the\_milkman555](https://forums.unrealengine.com/u/the_milkman555)\ **Replies:** 0\ **Last updated:** [November 10, 2026, 6:10pm UTC](https://forums.unrealengine.com/t/custom-item-abilities-randomly-fail-to-activate-using-the-new-ability-system-in-uefn/2853497 "2026-11-10T18:10:54Z")
I’m experiencing an intermittent issue with the new Ability System in UEFN where a custom item using custom firing animations will randomly stop activating its ability. The item can work perfectly for a period of time, … --- ## [Losing hours and days to re-compiling a project when making extremely small changes.](https://forums.unrealengine.com/t/losing-hours-and-days-to-re-compiling-a-project-when-making-extremely-small-changes/2763533)
**Author:** [@argenex](https://forums.unrealengine.com/u/argenex)\ **Replies:** 22\ **Last updated:** [November 10, 2026, 6:09pm UTC](https://forums.unrealengine.com/t/losing-hours-and-days-to-re-compiling-a-project-when-making-extremely-small-changes/2763533 "2026-11-10T18:09:50Z")
So far I keep encountering insanely long compile times for a basic, barely put together project. For example here are the following issues that I encounter which ends up resulting in 5-10 hour re-compiles. Deleting a … --- ## [No invitation E-Mail after linking Github with Epic Games Acc to join organization \[RESOLVED\]](https://forums.unrealengine.com/t/no-invitation-e-mail-after-linking-github-with-epic-games-acc-to-join-organization-resolved/246155)
**Author:** [@anonymous\_user\_8c580ed91](https://forums.unrealengine.com/u/anonymous_user_8c580ed91)\ **Replies:** 51\ **Last updated:** [November 10, 2026, 5:51pm UTC](https://forums.unrealengine.com/t/no-invitation-e-mail-after-linking-github-with-epic-games-acc-to-join-organization-resolved/246155 "2026-11-10T17:51:50Z")
Hey there, i linked my Epic Account with Github and recieved E-Mails confirming that the accounts are linked. But i didnt get an invitation link from github to join epicgames organization. I dont have a green Join butt… --- ## [UE 5.8 – UnrealBuildTool BuildRules DLLs blocked by Windows Smart App Control (0x800711C7) ](https://forums.unrealengine.com/t/ue-5-8-unrealbuildtool-buildrules-dlls-blocked-by-windows-smart-app-control-0x800711c7/2853431)
**Author:** [@mode2x](https://forums.unrealengine.com/u/mode2x)\ **Replies:** 0\ **Last updated:** [November 10, 2026, 4:36pm UTC](https://forums.unrealengine.com/t/ue-5-8-unrealbuildtool-buildrules-dlls-blocked-by-windows-smart-app-control-0x800711c7/2853431 "2026-11-10T16:36:16Z")
Dear Unreal Engine Community and Epic Games Team, I am developing a Meta Quest 3 VR application using Unreal Engine 5.8 on Windows. Problem Windows Smart App Control blocks the unsigned BuildRules DLL assemblies autom… --- ## [Ouline effect on each panel](https://forums.unrealengine.com/t/ouline-effect-on-each-panel/2852924)
**Author:** [@BallsSimulator](https://forums.unrealengine.com/u/BallsSimulator)\ **Replies:** 3\ **Last updated:** [November 10, 2026, 4:33pm UTC](https://forums.unrealengine.com/t/ouline-effect-on-each-panel/2852924 "2026-11-10T16:33:42Z")
Hi everyone, I’m currently working on a shader to make a sci-fi shield. I’m stuck on how to apply a glowing effect on each face of my sphere (which is made of islands of hexagons). I’ve used the Fresnel, but I don’t kno… --- ## [How To Calculate And/Or Store Adjacent Grid Spaces On Board Game](https://forums.unrealengine.com/t/how-to-calculate-and-or-store-adjacent-grid-spaces-on-board-game/2852119)
**Author:** [@Infant\_Zero](https://forums.unrealengine.com/u/Infant_Zero)\ **Replies:** 8\ **Last updated:** [November 10, 2026, 4:32pm UTC](https://forums.unrealengine.com/t/how-to-calculate-and-or-store-adjacent-grid-spaces-on-board-game/2852119 "2026-11-10T16:32:58Z")
I’m trying to figure out a quick way to calculate the adjacent spaces of a grid based on the starting location of a given game piece. The board is 5x5 and the pieces can only move laterally (forward, backward, left, and … --- ## [Day 14 completed as a Gameplay Engineer in Unreal Engine 5](https://forums.unrealengine.com/t/day-14-completed-as-a-gameplay-engineer-in-unreal-engine-5/2853380)
**Author:** [@kevinpc\_1](https://forums.unrealengine.com/u/kevinpc_1)\ **Replies:** 0\ **Last updated:** [November 10, 2026, 3:32pm UTC](https://forums.unrealengine.com/t/day-14-completed-as-a-gameplay-engineer-in-unreal-engine-5/2853380 "2026-11-10T15:32:30Z")
Day 14 completed as a Gameplay Engineer in Unreal Engine 5 Today I upgraded my inventory system by implementing Multiple Item Types in C++. Features completed: :white\_check\_mark: ItemType Variable :white\_check\_mark: … --- ## [Gameplay Cameras setup: Spring Arm migration and mismatched values](https://forums.unrealengine.com/t/gameplay-cameras-setup-spring-arm-migration-and-mismatched-values/2852819)
**Author:** [@CAPUSH0N](https://forums.unrealengine.com/u/CAPUSH0N)\ **Replies:** 1\ **Last updated:** [November 10, 2026, 12:29pm UTC](https://forums.unrealengine.com/t/gameplay-cameras-setup-spring-arm-migration-and-mismatched-values/2852819 "2026-11-10T12:29:12Z")
Hello everyone! I have a few questions about setting up Gameplay Cameras. I’m migrating my setup from a Spring Arm, but the camera position doesn’t match. Do I need to use an offset? Also, what is the Boo… --- ## [Realistic window frame or window mullion.](https://forums.unrealengine.com/t/realistic-window-frame-or-window-mullion/2853264)
**Author:** [@Jorge\_Da\_Cunha](https://forums.unrealengine.com/u/Jorge_Da_Cunha)\ **Replies:** 0\ **Last updated:** [November 10, 2026, 11:21am UTC](https://forums.unrealengine.com/t/realistic-window-frame-or-window-mullion/2853264 "2026-11-10T11:21:58Z")
Realistic window frame or window mullion --- ## [Create widget in pure C++](https://forums.unrealengine.com/t/create-widget-in-pure-c/367306)
**Author:** [@Pelangi](https://forums.unrealengine.com/u/Pelangi)\ **Replies:** 42\ **Last updated:** [November 10, 2026, 10:10am UTC](https://forums.unrealengine.com/t/create-widget-in-pure-c/367306 "2026-11-10T10:10:04Z")
I have read several links regarding creation of widgets in C++. One of them is this: Unfortunately that was in 2014. It’s 2 years from then. So I assume, UE is much better and support many more libraries. So with UI 4… --- ## [Which AI agents can compile and debug code for Unreal Engine?](https://forums.unrealengine.com/t/which-ai-agents-can-compile-and-debug-code-for-unreal-engine/2850120)
**Author:** [@Babush61](https://forums.unrealengine.com/u/Babush61)\ **Replies:** 1\ **Last updated:** [November 10, 2026, 9:01am UTC](https://forums.unrealengine.com/t/which-ai-agents-can-compile-and-debug-code-for-unreal-engine/2850120 "2026-11-10T09:01:00Z")
Hi. Which AI agents can compile and debug C++ code for Unreal Engine? For example, write code for an AActor class and verify the result. Can this be done in OpenCode? Or does it have to be set up through MCP inside Unre… --- ## [\[Iris\] Warns/Ensures when streaming out actors that are initially replicating ](https://forums.unrealengine.com/t/iris-warns-ensures-when-streaming-out-actors-that-are-initially-replicating/2617732)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 2\ **Last updated:** [November 10, 2026, 8:53am UTC](https://forums.unrealengine.com/t/iris-warns-ensures-when-streaming-out-actors-that-are-initially-replicating/2617732 "2026-11-10T08:53:06Z")
This doesn’t happen every single time, so im not entirely sure what the state is that’s required to produce it, other than we have lots of actors, several of them stream in that have replication enabled. As sometimes hap… --- ## [IsLocallyControlled() in BeginPlay() with Iris Enabled](https://forums.unrealengine.com/t/islocallycontrolled-in-beginplay-with-iris-enabled/2703151)
**Author:** [@RaidenV\_00](https://forums.unrealengine.com/u/RaidenV_00)\ **Replies:** 2\ **Last updated:** [November 10, 2026, 6:58am UTC](https://forums.unrealengine.com/t/islocallycontrolled-in-beginplay-with-iris-enabled/2703151 "2026-11-10T06:58:49Z")
Hi, I encountered a problem when using Iris in UE5.6. I have many separate operations according to IsLocallyControlled() in BeginPlay(), such as if player is not locally controlled then he won’t create a widget on him. … --- ## [Errors when compiling](https://forums.unrealengine.com/t/errors-when-compiling/1268105)
**Author:** [@Gamemkaer21312](https://forums.unrealengine.com/u/Gamemkaer21312)\ **Replies:** 2\ **Last updated:** [November 10, 2026, 3:07am UTC](https://forums.unrealengine.com/t/errors-when-compiling/1268105 "2026-11-10T03:07:35Z")
Im not really sure how to explain, but here are all the errors: UATHelper: Cooking (Windows): LogShaderCompilers: Warning: 4 Shader compiler errors compiling global shaders for platform PCD3D\_SM6: UATHelper: Cooking (W… --- ## [All of the Create Projects are now Add To Project now?](https://forums.unrealengine.com/t/all-of-the-create-projects-are-now-add-to-project-now/2848005)
**Author:** [@RandomMishaps](https://forums.unrealengine.com/u/RandomMishaps)\ **Replies:** 5\ **Last updated:** [November 9, 2026, 9:49pm UTC](https://forums.unrealengine.com/t/all-of-the-create-projects-are-now-add-to-project-now/2848005 "2026-11-09T21:49:29Z")
Anyone else got Add To Projects in their Library but in Fab, it is Create Project? --- ## [FNativeFastArrayReplication Fragment is missing HasFullPushBasedDirtiness trait](https://forums.unrealengine.com/t/fnativefastarrayreplication-fragment-is-missing-hasfullpushbaseddirtiness-trait/2707703)
**Author:** [@blackrock0700](https://forums.unrealengine.com/u/blackrock0700)\ **Replies:** 1\ **Last updated:** [November 9, 2026, 9:16pm UTC](https://forums.unrealengine.com/t/fnativefastarrayreplication-fragment-is-missing-hasfullpushbaseddirtiness-trait/2707703 "2026-11-09T21:16:13Z")
I found that FNativeFastArrayReplicationFragment is being polled every frame because its traits are set to HasPushBasedDirtiness instead of HasFullPushBasedDirtiness. This logic exists in FFastArrayReplicationFragmentBas… --- ## [State Tree Transition OnEvent Jumps To Root When Different Event Tag Recieved](https://forums.unrealengine.com/t/state-tree-transition-onevent-jumps-to-root-when-different-event-tag-recieved/2852076)
**Author:** [@Sononeo](https://forums.unrealengine.com/u/Sononeo)\ **Replies:** 5\ **Last updated:** [November 9, 2026, 4:01pm UTC](https://forums.unrealengine.com/t/state-tree-transition-onevent-jumps-to-root-when-different-event-tag-recieved/2852076 "2026-11-09T16:01:43Z")
Sorry if this is something that’s been asked before, or may be a feature or how it’s intended to work. But I’m trying to make use of events in states in State Trees in order to go to either the next state or jump to a c… --- ## [Help with Zero-g FPS](https://forums.unrealengine.com/t/help-with-zero-g-fps/2852830)
**Author:** [@Eric\_G.Gregory](https://forums.unrealengine.com/u/Eric_G.Gregory)\ **Replies:** 1\ **Last updated:** [November 9, 2026, 3:39pm UTC](https://forums.unrealengine.com/t/help-with-zero-g-fps/2852830 "2026-11-09T15:39:15Z")
So I’m making an FPS with some zero-g zones in which the player character can move with 6 degrees of freedom (move in any direction and rotate in any axis) but I’m having some issues with the player’s rotation. When u… --- ## [Day 13 - Stackable Inventory System in C++ (Unreal Engine 5)](https://forums.unrealengine.com/t/day-13-stackable-inventory-system-in-c-unreal-engine-5/2852818)
**Author:** [@kevinpc\_1](https://forums.unrealengine.com/u/kevinpc_1)\ **Replies:** 0\ **Last updated:** [November 9, 2026, 11:58am UTC](https://forums.unrealengine.com/t/day-13-stackable-inventory-system-in-c-unreal-engine-5/2852818 "2026-11-09T11:58:09Z")
Hello everyone, I’ve just completed Day 13 of my Unreal Engine 5 Gameplay Engineer journey. Today I upgraded my inventory system by implementing item stacking in C++. Before this update, collecting three coins created… --- ## [Cook failure....](https://forums.unrealengine.com/t/cook-failure/2852414)
**Author:** [@aerospike\_andy](https://forums.unrealengine.com/u/aerospike_andy)\ **Replies:** 2\ **Last updated:** [November 9, 2026, 6:27am UTC](https://forums.unrealengine.com/t/cook-failure/2852414 "2026-11-09T06:27:04Z")
Howdy brain trust, So I am getting this issue: never seen a cook failure before…any leads on what it might be? And yes i did read the log mentioned and it was unclear what might be causing it… --- ## [HideBoneByName does not affect attached components](https://forums.unrealengine.com/t/hidebonebyname-does-not-affect-attached-components/2852162)
**Author:** [@AgentMic0604](https://forums.unrealengine.com/u/AgentMic0604)\ **Replies:** 1\ **Last updated:** [November 8, 2026, 11:08am UTC](https://forums.unrealengine.com/t/hidebonebyname-does-not-affect-attached-components/2852162 "2026-11-08T11:08:10Z")
Although the documentation for this function states that it internally sets the bone’s scale to 0, the scale of the objects attached to that bone remains unchanged. This is strange. Even though I explicitly specified th… --- ## [Raid System like valhiem or palword](https://forums.unrealengine.com/t/raid-system-like-valhiem-or-palword/2850259)
**Author:** [@MARZ64331](https://forums.unrealengine.com/u/MARZ64331)\ **Replies:** 9\ **Last updated:** [November 8, 2026, 5:22am UTC](https://forums.unrealengine.com/t/raid-system-like-valhiem-or-palword/2850259 "2026-11-08T05:22:34Z")
I was wondering how I would be able to even make something like that. --- ## [Android Adreno Vulkan Crash in UE5.7.4 ](https://forums.unrealengine.com/t/android-adreno-vulkan-crash-in-ue5-7-4/2715269)
**Author:** [@Anonymous\_206ca6c69954d4f703db68f72de5eee8](https://forums.unrealengine.com/u/Anonymous_206ca6c69954d4f703db68f72de5eee8)\ **Replies:** 6\ **Last updated:** [November 8, 2026, 4:56am UTC](https://forums.unrealengine.com/t/android-adreno-vulkan-crash-in-ue5-7-4/2715269 "2026-11-08T04:56:40Z")
Hi，After I upgrade my engine to 5.7.4, there will be random crashes on the Android platform, especially during switching scene loading. Here is the crash stack. I am not good at rendering and engine, so I don’t know how … --- ## [I wonder if there is a file moving plugin..](https://forums.unrealengine.com/t/i-wonder-if-there-is-a-file-moving-plugin/2851803)
**Author:** [@foranie](https://forums.unrealengine.com/u/foranie)\ **Replies:** 1\ **Last updated:** [November 8, 2026, 12:10am UTC](https://forums.unrealengine.com/t/i-wonder-if-there-is-a-file-moving-plugin/2851803 "2026-11-08T00:10:19Z")
As many of you have experienced, when you try to organize by downloading third-party assets and moving them to a specific folder, various errors occur. Sometimes the file leaves a copy in its original location, sometime… --- ## [Broken Root Motion](https://forums.unrealengine.com/t/broken-root-motion/2849407)
**Author:** [@X\_AIZ\_X](https://forums.unrealengine.com/u/X_AIZ_X)\ **Replies:** 1\ **Last updated:** [November 7, 2026, 8:11pm UTC](https://forums.unrealengine.com/t/broken-root-motion/2849407 "2026-11-07T20:11:16Z")
Im having an annoying issues that is messing me up, my root motion is perfectly fine, its tracking perfectly, the Root Motion is Enabled but when used in an animation montage it wont move my character, Idk where the issu… --- ## [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… --- ## [Destroy Object](https://forums.unrealengine.com/t/destroy-object/136337)
**Author:** [@Sergiy\_Plamen](https://forums.unrealengine.com/u/Sergiy_Plamen)\ **Replies:** 5\ **Last updated:** [November 7, 2026, 5:25pm UTC](https://forums.unrealengine.com/t/destroy-object/136337 "2026-11-07T17:25:37Z")
Maybe a silly question, but is there a function in blueprints which destroys objects? Like destroy actor, or destroy component? I’m currently trying to use a custom object class instead of actor components (I have my rea… --- ## [Game Crashes with Fatal Error after config change](https://forums.unrealengine.com/t/game-crashes-with-fatal-error-after-config-change/619563)
**Author:** [@PolygonArt\_WEN](https://forums.unrealengine.com/u/PolygonArt_WEN)\ **Replies:** 1\ **Last updated:** [November 7, 2026, 10:21am UTC](https://forums.unrealengine.com/t/game-crashes-with-fatal-error-after-config-change/619563 "2026-11-07T10:21:14Z")
Hello, I have an early access game on Steam and I’m running into a strange error. I have recently added a new feature (vehicles) and added new inputs to the game. I release the update to the public and for the most pla… --- ## [Modeling Mode - Spiral Stair](https://forums.unrealengine.com/t/modeling-mode-spiral-stair/2849598)
**Author:** [@Jorge\_Da\_Cunha](https://forums.unrealengine.com/u/Jorge_Da_Cunha)\ **Replies:** 2\ **Last updated:** [November 6, 2026, 11:39pm UTC](https://forums.unrealengine.com/t/modeling-mode-spiral-stair/2849598 "2026-11-06T23:39:10Z")
Hi all! In modeling mode, I did a spiral stair, how can I put on a glass railing on it? [Previous page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=1) [Next page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=3)