Unreal Engine Issues
Unreal Engine Issues
Cannot Increment an Element of an Array
UE - Gameplay - Blueprint - Apr 15, 2016Attempting to increment the value of an array element does not seem to work, and instead returns the original value that was passed into the increment int node. Found in 4.11.1 binary. Reproduced i ...
When encrypt assets and packaging ,crash at game startup
UE - Foundation - Core - Sep 11, 2017When ShooterGame project is packed from RunUAT.bat, if you give encryption option, crash occurs at game startup. Without granting the encryption option crash does not occur. This occur. This problem ...
Applying Reverb does not work in Audio Volume
UE - Audio - Oct 29, 2019In current and future versions of the engine, the reverb does not work as intended in the Audio Volume Tested in 4.22.3 (CL - 7043647), 4.23.1 (CL - 9631420), 4.24 (CL - 9846303), 4.25 (CL - 98464 ...
Using Custom Primitive Data as Final Colour in a UI Material crashes the engine with a missing uniform buffer
UE - Rendering Architecture - Materials - Jul 3, 2024Using custom primitive data as an input in a UI material causes the engine to crash in the RHI thread. The exact crash is "Missing uniform buffer at slot 1, stage SF_Pixel." at Engine\Source\Runtime ...
UV merging issue when merging meshes with multiple materials
UE - LD & Modeling - Modeling Tools - Mesh Editing - Jul 15, 2019See https://udn.unrealengine.com/questions/505632/view.html for more details Repro: -Have a mesh with 3 sections and 3 materials, assign section 1 to material 1 and section 2&3 to material 3. -Pla ...
Dialog Subtitles randomly Disappear or Display out of Sync
UE - Audio - Sep 8, 2016Dialog Subtitles display out of order or disappear when called to the screen. The users reporting the issue believe this could be due to the priority of the Sound Waves conflicting with one another ...
Random Stream variables in the GameMode are reset every PIE
UE - Gameplay - Blueprint - Jul 6, 2015Random Stream variables in the GameMode are reset every PIE. Workaround is to use Set Random Stream Seed before using the Stream value. Reproduced in 4.7.6, 4.8.1, and Main (//depot/UE4/Promotable ...
GameplayTag Query on Component Instance resets when reloading level
UE - Gameplay - Components - Jun 14, 2018GameplayTagQuery variables - when inside of a component, are not saved. User notes: "Note that this does not occur if the ActorComponent is added in code in a native actor and that the actor at S ...
Oculus Touch Menu Button Input Not Received When Set In Action Mapping
UE - Platform - XR - Mar 9, 2020The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...
Marketplace plugins "missing precompiled manifest" on Mac
UE - Platform - Apple - Oct 12, 2021Summary This issue was reported by a licensee via UDN. It appears that all of the plugins generate a "missing precompiled manifest" error when packaging a project on Mac in UE4.26.2.Licensee Platfor ...