FLiveCodingModule::StartLiveCoding() unsafe access of FModuleManager::Get().OnModulesChanged()

UE - Foundation - Cpp Tools - Live Coding - Dec 19, 2023

A user has reported a failing ensure in FMRSWRecursiveAccessDetector::AcquireWriteAccess(), a race condition that has a small chance of happening when launching the editor. FLiveCodingModule::Start ...

GeometryScript_TextureUtils.sample_texture2d_at_uv_positions in python

UE - LD & Modeling - Modeling Tools - GeometryScripting - Nov 17, 2022

Licensee- "GeometryScript_TextureUtils.sample_texture2d_at_uv_positions does not work in python. The uvlist becomes nullptr from python to C++. BP is working fine." ...

Build All Levels fails with duplicate level instances

UE - World Creation - Worldbuilding Tools - Level Instances - Jan 24, 2024

Launch on fails during staging with a SafeCopyFile Exception for MfMedia.uplugin

Tools - Jan 10, 2017

Was able to repro this on machines with and without machines set up for Xbone testing. ...

[AI] Editor crashes when editing values of an FInstancedStruct's TArray inside of a BP

UE - AI - Jun 30, 2023

While using a custom struct that contains a TArray member variable with FInstancedStruct, you cannot edit it in the editor without a crash. Other structs and types work as expected even if they deri ...

Crash when force deleting Dataflow Graph

UE - Editor - Workflow Systems - Jul 31, 2023

When force deleting a dataflow graph with the dataflow graph editor open it will crash the engine. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binar ...

Make Timespan Node: Milliseconds to Seconds Conversion

UE - Foundation - Core - Jun 19, 2018

Make Timespan node returns unexpected conversion from milliseconds. With all other values 0 - values in the Milliseconds field over 2147 flip to negative and begin to decrement ...

Thumbstick Values Resetting with Oculus Rift through SteamVR

UE - Platform - XR - Oct 11, 2018

Thumbstick values reset once max value is reached. Tested with Rift WMR Plugin off - Works normally Oculus Plugin off (Running through Steam VR) - Only X values reset. Confirmed in Packaged proj ...

Eye Shading Model renders Emissive unexpectedly when using a FloatRGBA scene format

UE - Graphics Features - Apr 5, 2024

This appears to be caused by the colour format. It only occurs when the scene format has an alpha channel. FloatRGB (format 3) doesn’t exhibit these issues. Unfortunately, format 4 is the default fo ...