Investigate/fix navmesh tiles disappearing randomly when level stream in.

UE - AI - Feb 14, 2020

See UDN description: https://udn.unrealengine.com/questions/554749/bug-navmesh-streaming-and-tile-corruption.html ...

Shadow doesn't update for a moving nanite mesh (fixed in 5.4)

UE - Graphics Features - Shadows - Mar 25, 2024

When a nanite mesh moves, the shadow does not. ...

Project cannot build in VS 2017 15.8+ if it uses std::make_shared with an over-aligned type

UE - Foundation - Core - Aug 30, 2018

Visual Studio 2017 15.8 includes a fix to properly handle std::make_shared used with over-aligned types. However, this is a breaking fix and requires the definition of one of two macros to either ac ...

CheckCompilingPSOs assert in FMaterialPSORequestManager::MarkCompilationComplete fires occasionally

UE - Rendering - Architecture - RHI - May 17, 2025

Find the root cause and fix it. Potential issue based on logs:New RequestA is created in PrecachePSOs and its collection task is dispatched and finishedRequestA is waiting for compilation taskReque ...

Fix forwarding of dedicated flag and number of players when running a functional test

UE - Networking - Jun 21, 2019

As described in the UDN question, some settings aren't forwarded correctly to the game instance in PIE during a functional test. Proposed patch attached. ...

Fix possible crash if Android audio manager does not support certain properties

UE - Platform - Mobile - Jan 15, 2020

Not checking for a property not being supported by audio manager, need to protect it against NULL ...

Fix up IOS errors calling UI API from non-UI threads

UE - Platform - Apple - Jul 27, 2020

ETC2 Android devices are no longer supported in the Google Play Store as of 4.14

UE - Platform - Mobile - Nov 29, 2016

When uploading ETC2 packages to Google Play Store, it shows that 10712 devices were removed as supported devices and 332 remain. They did state in their AnswerHub that the unsupported devices still ...