Unreal Engine Issues
Unreal Engine Issues
Crashes when attempting to use an Instanced Struct inside Control Rig / Rig VM
UE - CAPT - Control Rig - Mar 17, 2025Currently, the Control Rig Editor allows the user to use the "Instanced Struct" type, for example for a variable or function input/output. However, this type does not seem to be properly supported ( ...
DLC Package content isn't recognized when using RequestAsyncLoad
UE - Foundation - Core - May 24, 2016Attempting to load dlc assets with RequestAsyncLoad function results in the assets not being recognized. ...
Getting Fullscreen or Windowed Resolutions doesn't fully execute on Linux
UE - Rendering - Architecture - RHI - Oct 28, 2019When using "Get Supported Fullscreen Resolutions" on UE when built with Vulkan, no values are printed out. This is an issue with any platform that builds UE with -vulkan, not just Linux. In Engine ...
When PCH is Disabled, Error Occurs in VulkanGenericPlatform.h at Android Build
UE - Graphics Features - Dec 6, 2018If disable PCH in Target.cs, an error will occur when building for Android. The log is as follows. LogPlayLevel: Error: D:/Build/Release-4_21_0/Engine/Source/Runtime/VulkanRHI/Private/Android/../Vu ...
Vive Trackpad X and Y always return 0
UE - Platform - XR - Feb 3, 2020Platform-specific input for pad axis in 4.24 leads to missing value in VIVE. in 4.23.1 this is not reproduced. ...
Crash when saving after resetting Instanced array element via Property Matrix on placed actors
UE - Editor - Nov 21, 2025When an Actor Component contains an Instanced UObject array marked EditDefaultsOnly, adding a new element to the Blueprint defaults correctly updates the Blueprint and its own Property Matrix. Howev ...
Blueprint processing is heavy in PIE since 4.26
UE - Gameplay - Blueprint - Feb 17, 2021As the attached image shows, there is no problem in 4.25.4, and the process is noticeably slower in 4.26.1. Also, there is no problem in Standalone. The problem occurs only in PIE. ...
Volumetric Clouds High Quality Aerial Perspective Issue
UE - Rendering - Architecture - Oct 19, 2023There is a workaround to set r.VolumetricRenderTarget.Mode=1. The lines appear to be coming from the temporal component of the Volumetric Clouds. Each frame, the lines are merged in from the previou ...
Spline Mesh regression on older iOS phone
UE - Platform - Mobile - Jun 10, 2019Regression with rendering Spline Mesh Components seen on older (5s) iOS device. I did not reproduce a crash with an iPadPro A1701 or an Android Note 4 Confirmed in 4.23 MAIN at CL 6910902 ...
Blueprint Launches onto tvOS fail during runstep: Error_DeviceOSNewerThanSDK
UE - Platform - Mobile - Apr 19, 2019When a user launches blueprint project to a tvOS device they will fail to run the project during the run step and if they manually try to launch the app from the dashboard. This issue does not repr ...