NetUpdateFrequency Affected by Global Time Dilation

UE - Networking - Jan 13, 2025

Changing the global time dilation in a multiplayer game affects the rate at which actors are considered for replication, and setting it to 0 will even cause replication to stop entirely (unless the ...

PATH not passed to NMake script when building Android from Visual Studio

UE - Core - Cpp Tools - UnrealBuildTool - Jan 25, 2023

After upgrading from UE5.0.3 to UE5.1, we started seeing this error when trying to build Android Development from Visual Studio (VS2022 17.2.1): Running UnrealBuildTool: dotnet "..\..\Engine\Binari ...

A C++ project with the name, "GearVR", will not build

UE - Foundation - Core - Jul 28, 2015

A C++ project with the name, "GearVR", will not build. This does not occur with content-only projects named GearVR. In 4.7.6 and 4.8.2, it fails during Compiling and an error message appears: Runni ...

[CrashReport][Crash] Engine!FSceneViewport::UpdateViewportRHI() [SceneViewport.cpp]

UE - Rendering - RHI - May 29, 2026

#200 crash out of 2101 in UE 5.8 on Windows#34 crash for UE - Rendering - Architecture in UE 5.8 on Windows#20 crash for UE - Rendering - Architecture - RHI in UE 5.8 on WindowsAssertion failed: IsI ...

Selecting a Packed Level Actor Blueprint Asset in Viewport does not select all packed assets

UE - Engine Scaling - Streaming - Level Instances - Nov 16, 2022

The Packed Level Actor behavior has changed since 5.0.3, exhibiting the behavior described in the Result. I was able to reproduce this 4/4 times on Windows. When testing on 5.0.3, I confirmed that t ...

OpenXR: per-frame Color/Depth mismatch caused by unsynchronized swapchain image selection across Game/Render/RHI threads (default xr.OpenXRAcquireMode=2)

UE - Platform - XR - Jul 29, 2026

Reported via UDN (case No107). Verified against //UE5/Release-5.6 sources; same code present in 5.5, 5.7, 5.8 and Main. Licensee reproduces on 5.3 and 5.6 with the Canon MREAL runtime. Symptom Fra ...

Pressed and Normal Padding appears to have no affect on buttons in UMG

UE - Editor - UI Systems - Aug 24, 2016

Pressed and Normal Padding appears to have no affect on buttons in UMG ...

Fix Up Redirectors does not affect redirectors within renamed folder

Tools - Sep 23, 2016

Fix Up Redirectors does not affect redirectors within renamed folder. ...

Foliage disappears When Using sg.EffectsQuality 1 on Standalone

UE - Graphics Features - Mar 21, 2018

Foliage disappears When Using sg.EffectsQuality 1 on Standalone. ...

Mip Gen Blur Settings affecting Mip Level 0 when setting the Maximum Texture Size

UE - Graphics Features - Jul 7, 2017

When Blurring a Texture using Mip Gen Settings and setting the LOD Bias or Maximum Texture Size, the blur gets applied to the base Mip Level 0. This behavior is contrary to how it behaves when blur ...