Unreal Engine Issues
Unreal Engine Issues
Incorrect values filled for nativized struct arrays when resized and packaged
UE - Gameplay - Jun 4, 2018When packaging a resized structure array it changes the array value to a large incorrect number. Testing the struct in PIE yields expected results. ...
VulkanStagingBuffers stat continually to grows.
UE - Platform - Mobile - Systems - Oct 24, 2025On Android phones, VulkanStagingBuffers continually grows when the scene is static. From looking at FStagingManager, it appears the VulkanStagingBuffers atat is only updated on buffer acquisition, ...
profilegpu should not crash when run on mobile platforms
UE - Platform - Mobile - Apr 15, 2015We don't have gpu timings on mobile/tiled gpus so we should just print a message that says that is not supported; right now it'll crash trying to run a shader. ...
A version of UnrealVS for VS2019 is not included with the Engine
UE - Foundation - Cpp Tools - UnrealVS - Apr 18, 2019Version 4.22 of the Engine includes initial support for Visual Studio 2019. However, an updated version of UnrealVS for VS2019 is not included in the Engine. ...
C4D Mograph not working in 4.24.0
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 16, 2019A customer is reporting that C4D mograph support is broken in version 4.24. C4D file added under [Link Removed] folder in: [Link Removed] ...
Proejcts with vr.InstancedStereo=true crash on Mac
UE - Platform - XR - Jan 12, 2023Sounds like neither Multiviewport nor View Instancing (MMV) is not supported on Mac atm, and the logic in StereoAspects asserts. See attached log from a partner. ...
Timer significantly lowers FPS as compared to tick running the same function
UE - Gameplay - May 1, 2015Timers set to a low time setting, but that are not set lower than tick, have a significant impact on FPS as compared to tick when updated a large number of objects at the same time. ...
Joystick is missing from projects on certain iOS devices
UE - Platform - Mobile - Jan 11, 2017The Flying template is not displaying joysticks when deployed to iOS. Issue does not occur in: 4.14.3 - 3251583 Phones tested that have not experienced the issue: iPhone 6S_6240 ...
IPhonePackger re-signs app with old signature format that makes users get the warning popup on iOS
UE - Platform - Mobile - Jan 27, 2021Apple forces developers to code sign an app using the latest code signature format and IPP needs to support it. a related link: [Link Removed] ...
Slower physics simulation when bSubStepping and bTickPhysicsAsync are enabled
UE - Runtime - Simulation - May 10, 2023When both Substepping and Tick Physics Async are enabled, there appears to be an inconsistency between the part of the physics simulation that calculates the number of steps and the part that calcul ...