# Programming & Scripting **URL:** https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=7 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 8 --- ## [Can anyone help me make a litle Halloween game?](https://forums.unrealengine.com/t/can-anyone-help-me-make-a-litle-halloween-game/2845650)
**Author:** [@MrAllen1976](https://forums.unrealengine.com/u/MrAllen1976)\ **Replies:** 7\ **Last updated:** [October 29, 2026, 7:09am UTC](https://forums.unrealengine.com/t/can-anyone-help-me-make-a-litle-halloween-game/2845650 "2026-10-29T07:09:59Z")
Here are the AI created Blueprints for a Halloween game in UE5.7. :bat: Game concept — Little Vampire Style: Halloween cartoon platformer Engine: Unreal Engine 5.7 Camera: Side-on 2.5D Player: Small vampire sprite F… --- ## [I need help with my UEFN map.](https://forums.unrealengine.com/t/i-need-help-with-my-uefn-map/2846303)
**Author:** [@TR-BODRUM](https://forums.unrealengine.com/u/TR-BODRUM)\ **Replies:** 1\ **Last updated:** [October 29, 2026, 5:13am UTC](https://forums.unrealengine.com/t/i-need-help-with-my-uefn-map/2846303 "2026-10-29T05:13:39Z")
Summary Dear Epic Games Support Team, I am currently developing a Fortnite UEFN island called Pieces Zone Wars (Island Code: 8919-0112-4675), and I am experiencing several issues that I have not been able to fix. How m… --- ## [Help With Blueprint Crashing Unreal](https://forums.unrealengine.com/t/help-with-blueprint-crashing-unreal/1321456)
**Author:** [@Proflooney](https://forums.unrealengine.com/u/Proflooney)\ **Replies:** 3\ **Last updated:** [October 29, 2026, 4:47am UTC](https://forums.unrealengine.com/t/help-with-blueprint-crashing-unreal/1321456 "2026-10-29T04:47:13Z")
I was working on shaders for my landscape and water. I was able to do everything fine then the next day when I tried to open my blueprint unreal crashed. I have tried several times with the same result. I am using 5.3 a… --- ## [Jittery Character Movement on Client](https://forums.unrealengine.com/t/jittery-character-movement-on-client/1901237)
**Author:** [@Rainy\_Devil](https://forums.unrealengine.com/u/Rainy_Devil)\ **Replies:** 3\ **Last updated:** [October 29, 2026, 3:19am UTC](https://forums.unrealengine.com/t/jittery-character-movement-on-client/1901237 "2026-10-29T03:19:31Z")
Hi all, My team and I are working on a sport simulation project that runs in editor. Multiple characters are driven by data we receive and move around a field. Typically the operator will host on one machine, and anothe… --- ## [为什么竖屏显示不全？ ](https://forums.unrealengine.com/t/topic/2846427)
**Author:** [@nhhwwfhx](https://forums.unrealengine.com/u/nhhwwfhx)\ **Replies:** 0\ **Last updated:** [October 28, 2026, 9:14pm UTC](https://forums.unrealengine.com/t/topic/2846427 "2026-10-28T21:14:05Z")
用了两天这个虚幻引擎，想试试开发个小游戏，发现这个预览手机竖屏模式的时候画面总是显示不全。有没有人愿意指导一下 --- ## [unreal engine keep crashing when i open a project ](https://forums.unrealengine.com/t/unreal-engine-keep-crashing-when-i-open-a-project/2846302)
**Author:** [@Idenisco](https://forums.unrealengine.com/u/Idenisco)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 7:08pm UTC](https://forums.unrealengine.com/t/unreal-engine-keep-crashing-when-i-open-a-project/2846302 "2026-10-28T19:08:26Z")
when i open unreal engine my pc crashes and gives me an watchdog error --- ## [How to make side walls for a raised dirt road.](https://forums.unrealengine.com/t/how-to-make-side-walls-for-a-raised-dirt-road/2846378)
**Author:** [@Hoboayoyo](https://forums.unrealengine.com/u/Hoboayoyo)\ **Replies:** 0\ **Last updated:** [October 28, 2026, 7:06pm UTC](https://forums.unrealengine.com/t/how-to-make-side-walls-for-a-raised-dirt-road/2846378 "2026-10-28T19:06:07Z")
I am trying to make a spline path in unreal using PCG and blueprints. The spline spawns a dirt road mesh, and if the mesh is high above the ground it will generate walls. The walls have two main sets of arrays that are c… --- ## [How to spawn transient actors in editor without affecting level save state?](https://forums.unrealengine.com/t/how-to-spawn-transient-actors-in-editor-without-affecting-level-save-state/2846155)
**Author:** [@addieaddy](https://forums.unrealengine.com/u/addieaddy)\ **Replies:** 2\ **Last updated:** [October 28, 2026, 6:49pm UTC](https://forums.unrealengine.com/t/how-to-spawn-transient-actors-in-editor-without-affecting-level-save-state/2846155 "2026-10-28T18:49:59Z")
I’m working on an RPG. I have a Blueprint for previewing encounters in editor, and as part of that, it needs to spawn the appropriate enemy/party actors in scene based on the encounter and party data. These are strictly… --- ## [stereo images in side-by-side or separeted files to view them on meta quest. Do you have the graph node? Thanks ](https://forums.unrealengine.com/t/stereo-images-in-side-by-side-or-separeted-files-to-view-them-on-meta-quest-do-you-have-the-graph-node-thanks/2846314)
**Author:** [@ManuelArmeneros](https://forums.unrealengine.com/u/ManuelArmeneros)\ **Replies:** 0\ **Last updated:** [October 28, 2026, 5:31pm UTC](https://forums.unrealengine.com/t/stereo-images-in-side-by-side-or-separeted-files-to-view-them-on-meta-quest-do-you-have-the-graph-node-thanks/2846314 "2026-10-28T17:31:50Z")
Hi, I’m trying to set up a material to attach L and R stereo images, or side-by-side but I’m not able to get it. Any help with that? Thanks --- ## [Objects dissappear](https://forums.unrealengine.com/t/objects-dissappear/2835857)
**Author:** [@Vibius221](https://forums.unrealengine.com/u/Vibius221)\ **Replies:** 2\ **Last updated:** [October 28, 2026, 4:03pm UTC](https://forums.unrealengine.com/t/objects-dissappear/2835857 "2026-10-28T16:03:43Z")
When my click moves to the point and shortens the Spring arm there is almost a plain/field dead zone in the X and Y directions where it disappears. Moving makes it come back after the first WASD movement, but the zone st… --- ## [Tilemap/ tile set gaps or grid squares showing between tiles?](https://forums.unrealengine.com/t/tilemap-tile-set-gaps-or-grid-squares-showing-between-tiles/2846205)
**Author:** [@WillMead13](https://forums.unrealengine.com/u/WillMead13)\ **Replies:** 0\ **Last updated:** [October 28, 2026, 1:01pm UTC](https://forums.unrealengine.com/t/tilemap-tile-set-gaps-or-grid-squares-showing-between-tiles/2846205 "2026-10-28T13:01:13Z")
In my current project, the tilemap is showing gaps between it? I have no idea how to fix this and it’s very annoying- Also, I already conditioned the tile sheet texture but this did not fix the issue! Any help would be g… --- ## [Linux Arm 64 problem thats not pressent in editor](https://forums.unrealengine.com/t/linux-arm-64-problem-thats-not-pressent-in-editor/2844237)
**Author:** [@Th3\_green\_legend](https://forums.unrealengine.com/u/Th3_green_legend)\ **Replies:** 3\ **Last updated:** [October 28, 2026, 11:43am UTC](https://forums.unrealengine.com/t/linux-arm-64-problem-thats-not-pressent-in-editor/2844237 "2026-10-28T11:43:45Z")
Hey every1 i alrdy posted about this but now i learned that i was wrong about the problem and its another problem. When i package my build for linux arm 64 and press a button in the charachter select it works , except i… --- ## [Hide a TextBlock after X seconds of been added to the viewport](https://forums.unrealengine.com/t/hide-a-textblock-after-x-seconds-of-been-added-to-the-viewport/2846125)
**Author:** [@ViaCognita](https://forums.unrealengine.com/u/ViaCognita)\ **Replies:** 3\ **Last updated:** [October 28, 2026, 10:53am UTC](https://forums.unrealengine.com/t/hide-a-textblock-after-x-seconds-of-been-added-to-the-viewport/2846125 "2026-10-28T10:53:23Z")
Hi! I have an User Widget with a TextBlock. I want to hide the text block X seconds after it has been added to the viewport. Maybe there is an event in the User Widget triggered when it is added to the viewport. An… --- ## [Error when trying to find class in blueprints](https://forums.unrealengine.com/t/error-when-trying-to-find-class-in-blueprints/2845773)
**Author:** [@adibablu](https://forums.unrealengine.com/u/adibablu)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 7:40am UTC](https://forums.unrealengine.com/t/error-when-trying-to-find-class-in-blueprints/2845773 "2026-10-28T07:40:52Z")
I am trying to find a class in Unreal Engine 5.8 in the BeginPlay of one of my blueprint classes (derived from a C++ class). When I try to compile it shows an error and it is looking for a Context input. The documentatio… --- ## [Unreal Engine 5.7.3 Gameplay Camera System boom arm problem](https://forums.unrealengine.com/t/unreal-engine-5-7-3-gameplay-camera-system-boom-arm-problem/2845996)
**Author:** [@NelsonPunch](https://forums.unrealengine.com/u/NelsonPunch)\ **Replies:** 0\ **Last updated:** [October 28, 2026, 4:57am UTC](https://forums.unrealengine.com/t/unreal-engine-5-7-3-gameplay-camera-system-boom-arm-problem/2845996 "2026-10-28T04:57:34Z")
Hi there, I am currently running into a problem with the boom arm node in the Gameplay Camera System. In my camera rig, I have a BoomArm node that makes the camera always keep a distance from my character, followed by a… --- ## [RecastNavMesh changes Agent Height back to 144](https://forums.unrealengine.com/t/recastnavmesh-changes-agent-height-back-to-144/414140)
**Author:** [@DExUS5](https://forums.unrealengine.com/u/DExUS5)\ **Replies:** 14\ **Last updated:** [October 27, 2026, 8:29pm UTC](https://forums.unrealengine.com/t/recastnavmesh-changes-agent-height-back-to-144/414140 "2026-10-27T20:29:24Z")
I have set in the project navigation mesh setting that Agent Height is “2” which is the desired size. The RecastNavmesh-Default changes the setting back to 144 from time to time. It is very frustrating since navigation… --- ## [Local LLMs I’ve Tested for Unreal Engine 5.8 + Epic MCP](https://forums.unrealengine.com/t/local-llms-i-ve-tested-for-unreal-engine-5-8-epic-mcp/2763362)
**Author:** [@Jrt0013](https://forums.unrealengine.com/u/Jrt0013)\ **Replies:** 1\ **Last updated:** [October 27, 2026, 5:48pm UTC](https://forums.unrealengine.com/t/local-llms-i-ve-tested-for-unreal-engine-5-8-epic-mcp/2763362 "2026-10-27T17:48:07Z")
Local LLMs I’ve Tested for Unreal Engine 5.8 + Epic MCP I’m trying to get a fully local LLM to control Unreal Engine 5.8 through Epic’s MCP stack. The target is not just basic tool calling. I need the model to reliably … --- ## [Change dropdown's ButtonStyle upon closing it](https://forums.unrealengine.com/t/change-dropdowns-buttonstyle-upon-closing-it/2650506)
**Author:** [@Sasparlet](https://forums.unrealengine.com/u/Sasparlet)\ **Replies:** 2\ **Last updated:** [October 27, 2026, 5:15pm UTC](https://forums.unrealengine.com/t/change-dropdowns-buttonstyle-upon-closing-it/2650506 "2026-10-27T17:15:26Z")
Hi all, I’m in the process of creating a UI with UMG in UE 5.1 and I’m having some troubles with some details that are pretty much something I’ve seen in many video games before. The idea is that I want to have my Combo… --- ## [UEFN: Recovering consumable purchases after server termination ](https://forums.unrealengine.com/t/uefn-recovering-consumable-purchases-after-server-termination/2845808)
**Author:** [@BestAviPE](https://forums.unrealengine.com/u/BestAviPE)\ **Replies:** 0\ **Last updated:** [October 27, 2026, 5:15pm UTC](https://forums.unrealengine.com/t/uefn-recovering-consumable-purchases-after-server-termination/2845808 "2026-10-27T17:15:23Z")
We are implementing a repeatable paid Rebirth consumable in UEFN using the official Marketplace API and persistable Verse player data. Current flow: Verify that the player owns the entitlement. Persist a pending opera… --- ## [How do I delete a Rift Point device once it's already installed?](https://forums.unrealengine.com/t/how-do-i-delete-a-rift-point-device-once-its-already-installed/2845802)
**Author:** [@XameR\_HD](https://forums.unrealengine.com/u/XameR_HD)\ **Replies:** 0\ **Last updated:** [October 27, 2026, 5:11pm UTC](https://forums.unrealengine.com/t/how-do-i-delete-a-rift-point-device-once-its-already-installed/2845802 "2026-10-27T17:11:37Z")
Hi everyone, has anyone figured out yet how to completely remove an installed Rift Point device? Disabling the Rift Point volume doesn’t seem to help—it just disables the deactivation button. --- ## [Bannissement compétitif injustifié – Toujours impossible de participer aux Cups après mon débannissement ](https://forums.unrealengine.com/t/bannissement-competitif-injustifie-toujours-impossible-de-participer-aux-cups-apres-mon-debannissement/2845793)
**Author:** [@93b96cd95bc846f6ab596e6dc8a3afd0](https://forums.unrealengine.com/u/93b96cd95bc846f6ab596e6dc8a3afd0)\ **Replies:** 0\ **Last updated:** [October 27, 2026, 4:59pm UTC](https://forums.unrealengine.com/t/bannissement-competitif-injustifie-toujours-impossible-de-participer-aux-cups-apres-mon-debannissement/2845793 "2026-10-27T16:59:12Z")
Bonjour à tous, Je publie ce message car je rencontre un problème avec mon compte Fortnite et j’aimerais savoir si d’autres joueurs ont vécu la même situation ou si quelqu’un peut m’aider. À l’origine, j’ai été banni d… --- ## [Some rules and things won't work ](https://forums.unrealengine.com/t/some-rules-and-things-wont-work/2845791)
**Author:** [@\_SA7](https://forums.unrealengine.com/u/_SA7)\ **Replies:** 0\ **Last updated:** [October 27, 2026, 4:59pm UTC](https://forums.unrealengine.com/t/some-rules-and-things-wont-work/2845791 "2026-10-27T16:59:00Z")
Title: Fortnite Creative Bug – Map Rules and Save Point Not Working for Players Who Join an Ongoing Session Sometimes, when my map is already running and players are playing, a new player joins the session and several t… --- ## [Día 6 - Sistema de Interacción en C++ (Unreal Engine 5)](https://forums.unrealengine.com/t/dia-6-sistema-de-interaccion-en-c-unreal-engine-5/2845663)
**Author:** [@kevinpc\_1](https://forums.unrealengine.com/u/kevinpc_1)\ **Replies:** 4\ **Last updated:** [October 27, 2026, 3:08pm UTC](https://forums.unrealengine.com/t/dia-6-sistema-de-interaccion-en-c-unreal-engine-5/2845663 "2026-10-27T15:08:54Z")
Hola a todos. He completado el Día 6 de mi serie de aprendizaje para convertirme en Gameplay Engineer utilizando Unreal Engine 5 y C++. En esta ocasión he desarrollado un Sistema de Interacción utilizando Enhanced Inpu… --- ## [Game Instance vs Save Game for actors surviving level transitions](https://forums.unrealengine.com/t/game-instance-vs-save-game-for-actors-surviving-level-transitions/2720394)
**Author:** [@Crazy\_Tony8888](https://forums.unrealengine.com/u/Crazy_Tony8888)\ **Replies:** 11\ **Last updated:** [October 27, 2026, 2:43pm UTC](https://forums.unrealengine.com/t/game-instance-vs-save-game-for-actors-surviving-level-transitions/2720394 "2026-10-27T14:43:20Z")
My brain is absolutely fried trying to figure out how to make this work. I have BP actors that get spawned in when their pickup blueprint gets interacted with. When that Actor spawns in the player’s hands, it also gets a… --- ## [Reset recurrent memory at episode boundaries instead of masking the loss in Learning Agents](https://forums.unrealengine.com/t/reset-recurrent-memory-at-episode-boundaries-instead-of-masking-the-loss-in-learning-agents/2845440)
**Author:** [@MannyVindiola](https://forums.unrealengine.com/u/MannyVindiola)\ **Replies:** 1\ **Last updated:** [October 27, 2026, 2:37pm UTC](https://forums.unrealengine.com/t/reset-recurrent-memory-at-episode-boundaries-instead-of-masking-the-loss-in-learning-agents/2845440 "2026-10-27T14:37:35Z")
This one is not a bug report but rather, an alternative suggestion for your consideration. learning\_agents/ppo.py trains recurrent policies on fixed-length windows (PolicyWindowSize) taken from the flattened experience b… --- ## [Apply Resimulation to Chaos Moudular Vehicle ](https://forums.unrealengine.com/t/apply-resimulation-to-chaos-moudular-vehicle/2694754)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 7\ **Last updated:** [October 27, 2026, 2:18pm UTC](https://forums.unrealengine.com/t/apply-resimulation-to-chaos-moudular-vehicle/2694754 "2026-10-27T14:18:04Z")
Hello Epic Games Support, I’m currently testing multiplayer using the Chaos Modular Vehicle system in Unreal Engine 5.5, and I’ve encountered an issue where the positions of vehicles between the server and client are no… --- ## [\[Mover 2.0\] MoverComponent works with Capsule/Box Root, but fails to move a StaticMeshComponent Root ](https://forums.unrealengine.com/t/mover-2-0-movercomponent-works-with-capsule-box-root-but-fails-to-move-a-staticmeshcomponent-root/2705947)
**Author:** [@Arwaen](https://forums.unrealengine.com/u/Arwaen)\ **Replies:** 2\ **Last updated:** [October 27, 2026, 2:15pm UTC](https://forums.unrealengine.com/t/mover-2-0-movercomponent-works-with-capsule-box-root-but-fails-to-move-a-staticmeshcomponent-root/2705947 "2026-10-27T14:15:40Z")
Hello everyone, I am currently experimenting with the new Mover plugin (Mover 2.0) and I’ve run into an issue when trying to set up a custom Pawn. My setup works perfectly fine when I use a standard collision shape (Ca… --- ## [Unreal Engine Replicated Physics ](https://forums.unrealengine.com/t/unreal-engine-replicated-physics/2411880)
**Author:** [@eymen.t](https://forums.unrealengine.com/u/eymen.t)\ **Replies:** 12\ **Last updated:** [October 27, 2026, 2:13pm UTC](https://forums.unrealengine.com/t/unreal-engine-replicated-physics/2411880 "2026-10-27T14:13:19Z")
In my game, I have a boat controlled via mouse input. The boat moves using Add Force and Add Torque, and I apply buoyancy every frame using Add Force at Location. The buoyancy is calculated on every player. My goal is to… --- ## [Network Prediction Plugin, Mover and Simulated Proxies not running SimulationTick](https://forums.unrealengine.com/t/network-prediction-plugin-mover-and-simulated-proxies-not-running-simulationtick/2658233)
**Author:** [@Neoptolemus](https://forums.unrealengine.com/u/Neoptolemus)\ **Replies:** 3\ **Last updated:** [October 27, 2026, 1:56pm UTC](https://forums.unrealengine.com/t/network-prediction-plugin-mover-and-simulated-proxies-not-running-simulationtick/2658233 "2026-10-27T13:56:10Z")
Hi all, I am working in 5.6 with the UMoverComponent for player movement. I noticed that even with the Simulated Proxy Network LOD setting on “Forward Predict”, simulated proxies never execute any code in the active mov… --- ## [\[Networking\] Relay a rotation from the client to the server](https://forums.unrealengine.com/t/networking-relay-a-rotation-from-the-client-to-the-server/2776286)
**Author:** [@XP\_Exige\_o\_O](https://forums.unrealengine.com/u/XP_Exige_o_O)\ **Replies:** 6\ **Last updated:** [October 27, 2026, 1:51pm UTC](https://forums.unrealengine.com/t/networking-relay-a-rotation-from-the-client-to-the-server/2776286 "2026-10-27T13:51:24Z")
I’m pretty new to networking and making multiplayer games in general but I kind of understand the basics of how things should work (I think), just don’t know how to implement it! I’m making a custom movement system, sim… [Previous page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=6) [Next page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=8)