# Blueprint **URL:** https://forums.unrealengine.com/c/development-discussion/programming-scripting/blueprint/28.md?page=1 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 2 --- ## [Unreal Engine 5.6.1 Continues to crash when running a MQTT connection.](https://forums.unrealengine.com/t/unreal-engine-5-6-1-continues-to-crash-when-running-a-mqtt-connection/2720619)
**Author:** [@AddisonCtrlDevs](https://forums.unrealengine.com/u/AddisonCtrlDevs)\ **Replies:** 1\ **Last updated:** [October 29, 2026, 6:29pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-6-1-continues-to-crash-when-running-a-mqtt-connection/2720619 "2026-10-29T18:29:45Z")
Good Morning All! (Quick preface, I am running this project on 5.6.1 and am attempting to use the built in experimental MQTT plugin) I am still trying to learn and experiment with MQTT implementation within UE5 bluepri… --- ## [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… --- ## [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… --- ## [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… --- ## [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… --- ## [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… --- ## [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… --- ## [\[Networking\] 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… --- ## [How can I know when the player stops moving the mouse?](https://forums.unrealengine.com/t/how-can-i-know-when-the-player-stops-moving-the-mouse/2845546)
**Author:** [@ViaCognita](https://forums.unrealengine.com/u/ViaCognita)\ **Replies:** 2\ **Last updated:** [October 27, 2026, 9:25am UTC](https://forums.unrealengine.com/t/how-can-i-know-when-the-player-stops-moving-the-mouse/2845546 "2026-10-27T09:25:53Z")
Hi! I need to know when the player stops moving the mouse. To test it, I’m using the third person template to know when the user stops moving the mouse: I think I have to use the Completed event but it is full of “… --- ## [Integer variable only using default value opposed to the value set. ](https://forums.unrealengine.com/t/integer-variable-only-using-default-value-opposed-to-the-value-set/2845376)
**Author:** [@ThatOneDolphin38](https://forums.unrealengine.com/u/ThatOneDolphin38)\ **Replies:** 3\ **Last updated:** [October 27, 2026, 2:07am UTC](https://forums.unrealengine.com/t/integer-variable-only-using-default-value-opposed-to-the-value-set/2845376 "2026-10-27T02:07:52Z")
I have a multiplayer system in which a host can set the maximum amount of players, create a session and once that number of players is present in the lobby the game begins. This functions fine apart from the Public Conne… --- ## [PlayerStart not working, in new update](https://forums.unrealengine.com/t/playerstart-not-working-in-new-update/2845257)
**Author:** [@Ruslanmin2](https://forums.unrealengine.com/u/Ruslanmin2)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 6:08pm UTC](https://forums.unrealengine.com/t/playerstart-not-working-in-new-update/2845257 "2026-10-26T18:08:31Z")
PlayerStart not working, how to fix it?? Please help. Ruslan --- ## [Shared Keyboard 2 player game Input Action Movement working but Animations not?](https://forums.unrealengine.com/t/shared-keyboard-2-player-game-input-action-movement-working-but-animations-not/2845349)
**Author:** [@WillMead13](https://forums.unrealengine.com/u/WillMead13)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 3:58pm UTC](https://forums.unrealengine.com/t/shared-keyboard-2-player-game-input-action-movement-working-but-animations-not/2845349 "2026-10-26T15:58:55Z")
Hey all! This is quite urgent because it’s for a game jam so I appreciate any help!! I’m creating a local coop game with a shared keyboard (one player is on WASD, one is on arrow keys) The movement works fine, however,… --- ## [How to rotate Tangents with spline point on runtime?](https://forums.unrealengine.com/t/how-to-rotate-tangents-with-spline-point-on-runtime/2841798)
**Author:** [@Overseeing\_Industry](https://forums.unrealengine.com/u/Overseeing_Industry)\ **Replies:** 4\ **Last updated:** [October 26, 2026, 10:47am UTC](https://forums.unrealengine.com/t/how-to-rotate-tangents-with-spline-point-on-runtime/2841798 "2026-10-26T10:47:04Z")
I am currently trying to have players be able to make sloped surfaces using splines, however, i cannot seem to understand how to have the tangents be rotated with the spline points. Im sure its some super complicated mat… --- ## [Creating a scrolling "Samurai Warrior" clone using Blueprints?](https://forums.unrealengine.com/t/creating-a-scrolling-samurai-warrior-clone-using-blueprints/2845064)
**Author:** [@MrAllen1976](https://forums.unrealengine.com/u/MrAllen1976)\ **Replies:** 1\ **Last updated:** [October 25, 2026, 11:11pm UTC](https://forums.unrealengine.com/t/creating-a-scrolling-samurai-warrior-clone-using-blueprints/2845064 "2026-10-25T23:11:38Z")
Above. I recently got Blueprints for a scrolling fighter starring a Samurai Rabbit, similar to “Samurai Warrior” which was released on the 8 bits by Firebird back in the late 1980s. I got the Blueprints from ChatGPT.co… --- ## [Behavior tree still running after player controller possesses actor](https://forums.unrealengine.com/t/behavior-tree-still-running-after-player-controller-possesses-actor/2844723)
**Author:** [@pastelfable](https://forums.unrealengine.com/u/pastelfable)\ **Replies:** 1\ **Last updated:** [October 24, 2026, 7:30pm UTC](https://forums.unrealengine.com/t/behavior-tree-still-running-after-player-controller-possesses-actor/2844723 "2026-10-24T19:30:01Z")
In my project the player can switch between characters, and when they switch off a character an AI controller possesses it and runs a behavior tree, which is currently just a move to and an attack task. When switching ba… --- ## [Controlling Parameters for Niagara not working? UE5](https://forums.unrealengine.com/t/controlling-parameters-for-niagara-not-working-ue5/527408)
**Author:** [@Golak\_StrongNeck](https://forums.unrealengine.com/u/Golak_StrongNeck)\ **Replies:** 6\ **Last updated:** [October 23, 2026, 8:07pm UTC](https://forums.unrealengine.com/t/controlling-parameters-for-niagara-not-working-ue5/527408 "2026-10-23T20:07:56Z")
Simple thing, just trying to change that float to 2000 on press play. Seems right and hits breakpoint but no change. Any ideas? --- ## [Set Niagara Variable (Audio Player) doesn't exist ?](https://forums.unrealengine.com/t/set-niagara-variable-audio-player-doesnt-exist/1357010)
**Author:** [@Tigris\_RL](https://forums.unrealengine.com/u/Tigris_RL)\ **Replies:** 3\ **Last updated:** [October 23, 2026, 8:05pm UTC](https://forums.unrealengine.com/t/set-niagara-variable-audio-player-doesnt-exist/1357010 "2026-10-23T20:05:07Z")
I am trying to trigger bullet casing sounds within the Niagara system for bullet shells ejected. I currently feed the static mesh information from the weapon data via “SetNiagaraVariable(StaticMesh).” I want to do the … --- ## [Render target materials](https://forums.unrealengine.com/t/render-target-materials/1927658)
**Author:** [@MonkiDG](https://forums.unrealengine.com/u/MonkiDG)\ **Replies:** 1\ **Last updated:** [October 23, 2026, 8:00pm UTC](https://forums.unrealengine.com/t/render-target-materials/1927658 "2026-10-23T20:00:06Z")
Is there any way to get a percentage of completion from here or something similar? --- ## [creating dynamic material instances from csv file ](https://forums.unrealengine.com/t/creating-dynamic-material-instances-from-csv-file/2443142)
**Author:** [@CiaranFrench](https://forums.unrealengine.com/u/CiaranFrench)\ **Replies:** 4\ **Last updated:** [October 23, 2026, 7:57pm UTC](https://forums.unrealengine.com/t/creating-dynamic-material-instances-from-csv-file/2443142 "2026-10-23T19:57:49Z")
Is there a way to drive the RGB material values of a single object that has multiple instances from a csv file where the index of the object instance and the index of the rgb values from the csv align? Cheers --- ## [How to create a photography camera? (How to convert render target to a texture?)](https://forums.unrealengine.com/t/how-to-create-a-photography-camera-how-to-convert-render-target-to-a-texture/2153783)
**Author:** [@jacksonnexhip](https://forums.unrealengine.com/u/jacksonnexhip)\ **Replies:** 3\ **Last updated:** [October 23, 2026, 7:50pm UTC](https://forums.unrealengine.com/t/how-to-create-a-photography-camera-how-to-convert-render-target-to-a-texture/2153783 "2026-10-23T19:50:30Z")
Hi all, I have a simple camera setup with a render target which allows the player to snapshot the world on a button press to take photos in-game. Is it possible to get the result of the render target as a texture to… --- ## [Exporting a Data Table Back to CSV](https://forums.unrealengine.com/t/exporting-a-data-table-back-to-csv/330529)
**Author:** [@anonymous\_user\_33e74471](https://forums.unrealengine.com/u/anonymous_user_33e74471)\ **Replies:** 12\ **Last updated:** [October 23, 2026, 7:00pm UTC](https://forums.unrealengine.com/t/exporting-a-data-table-back-to-csv/330529 "2026-10-23T19:00:07Z")
Heya, I’m trying to hook up some modifiable data up to Data Tables to be edited by CSV. It was super easy to hook up the CSV to be imported into unreal, but I’m wondering if there’s a good way to export that Data Table … --- ## [PPM in MRG Panoramic Deferred Renderer ](https://forums.unrealengine.com/t/ppm-in-mrg-panoramic-deferred-renderer/2841229)
**Author:** [@bri-do-fuse](https://forums.unrealengine.com/u/bri-do-fuse)\ **Replies:** 5\ **Last updated:** [October 23, 2026, 5:12pm UTC](https://forums.unrealengine.com/t/ppm-in-mrg-panoramic-deferred-renderer/2841229 "2026-10-23T17:12:52Z")
“Deferred Renderer” includes the ability to assign post-process materials for arbitrary passes. How to achieve the same output passes with the Panoramic Deferred Renderer? --- ## [Line break for public text variable](https://forums.unrealengine.com/t/line-break-for-public-text-variable/48324)
**Author:** [@anonymous\_user\_dfff491d](https://forums.unrealengine.com/u/anonymous_user_dfff491d)\ **Replies:** 10\ **Last updated:** [October 23, 2026, 9:27am UTC](https://forums.unrealengine.com/t/line-break-for-public-text-variable/48324 "2026-10-23T09:27:26Z")
Hello, with “Shift + Enter” i can set a new line within a blueprint-text-variable. However, when i try this outside via the public variable (under the “Details”-Window of an actor) it is not possible. Is there a possibi… --- ## [MakeFloat nodes replacement? ](https://forums.unrealengine.com/t/makefloat-nodes-replacement/2843953)
**Author:** [@Monkeysofdoom](https://forums.unrealengine.com/u/Monkeysofdoom)\ **Replies:** 2\ **Last updated:** [October 23, 2026, 3:11am UTC](https://forums.unrealengine.com/t/makefloat-nodes-replacement/2843953 "2026-10-23T03:11:39Z")
I’ve dug around briefly online for this MakeFloatX node, following a tutorial, and it doesn’t seem to exist anymore. I’ve seen closed forum posts about it with a workaround that doesn’t work either, due to material funct… --- ## [cant work AdaptivePathfindingSystem on my unreal engine project ](https://forums.unrealengine.com/t/cant-work-adaptivepathfindingsystem-on-my-unreal-engine-project/2843920)
**Author:** [@toberharly](https://forums.unrealengine.com/u/toberharly)\ **Replies:** 1\ **Last updated:** [October 23, 2026, 12:52am UTC](https://forums.unrealengine.com/t/cant-work-adaptivepathfindingsystem-on-my-unreal-engine-project/2843920 "2026-10-23T00:52:46Z")
Hi, im using AdaptivePathfindingSystem: AI Navigation Plugin v2.06 on Unreal Engine Versión: 5.7.4-51494982+++UE5+Release-5.7 on Windows 10 Pro The pawn is moving right with the custom NavData: RecastNavMesh. When i … --- ## [Unreal Engine keeps crashing/freezing my entire PC ](https://forums.unrealengine.com/t/unreal-engine-keeps-crashing-freezing-my-entire-pc/2843949)
**Author:** [@zuumi696](https://forums.unrealengine.com/u/zuumi696)\ **Replies:** 1\ **Last updated:** [October 22, 2026, 8:13pm UTC](https://forums.unrealengine.com/t/unreal-engine-keeps-crashing-freezing-my-entire-pc/2843949 "2026-10-22T20:13:23Z")
Hi everyone, I am having severe technical issues with my PC whenever I run Unreal Engine. The system becomes completely unstable, causing the entire computer to crash and freeze after a few minutes of use. Here are my … --- ## [Why does my equip system "only" work once? ](https://forums.unrealengine.com/t/why-does-my-equip-system-only-work-once/2843424)
**Author:** [@SejWok](https://forums.unrealengine.com/u/SejWok)\ **Replies:** 2\ **Last updated:** [October 22, 2026, 7:54pm UTC](https://forums.unrealengine.com/t/why-does-my-equip-system-only-work-once/2843424 "2026-10-22T19:54:44Z")
“Only” in quotes because I’ve run through the whole thing with breakpoints, and every node is firing like it should. But when I play it, I can only equip one item, then nothing else. I have two items made, one for each s… --- ## [UE: 5.5Unreal PCG Spline breaks on Z axis change](https://forums.unrealengine.com/t/ue-5-5unreal-pcg-spline-breaks-on-z-axis-change/2843046)
**Author:** [@Hoboayoyo](https://forums.unrealengine.com/u/Hoboayoyo)\ **Replies:** 2\ **Last updated:** [October 22, 2026, 2:16pm UTC](https://forums.unrealengine.com/t/ue-5-5unreal-pcg-spline-breaks-on-z-axis-change/2843046 "2026-10-22T14:16:57Z")
Video demonstration https://youtu.be/uV8RWF8uKNs I’m having an issue with making a wall with PCG and splines. If I move one of the splines up or down in height, the entire spline breaks (in the video) I’m not exactly su… [Previous page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/blueprint/28.md) [Next page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/blueprint/28.md?page=2)