"Runaway loop detected" warnings on AnimBP with worker threads

OLD - Anim - Jul 29, 2016

The runaway loop detection stuff is designed as per thread singletons (TLS). The worker threads don't properly reset the runaway counters. ...

Stop>Set Sequence>Play causes spawnables to be duplicated

UE - Anim - Sequencer - Aug 30, 2016

Stop>Set Sequence>Play causes spawnables to be duplicated There is an alternate repro (see attached image) that uses Create Level Sequence Player, but that one seems expected since it is, well, cre ...

Sequence recording in standalone crashes

UE - Anim - Sequencer - Sep 5, 2016

We use GetEditorWorldCounterpartActor in the sequence recorder which cant work in standalone builds as it relies on GEditor. The best fix would probably be to just add a guard for GEditor to GetEdit ...

HISMC with LODs added as a Blueprint Component creates extra Material Elements

UE - Graphics Features - Oct 18, 2016

Adding a HISM as a component within blueprints and referencing a Static Mesh with LODs, creates extra/additional and material elements. ...

Scrolling artifacts on mobile at low FPS

UE - Platform - Mobile - Aug 3, 2016

Weird artifacts appear when scrolling through textures in a scroll box. This is more noticeable and happens more frequently at lower frame rates. View AnswerHub thread for examples of artifacting. ...

FRunnableThread Suspend doesn't work on android

UE - Foundation - Core - Aug 27, 2018

The FRunnableThread::Suspend() function call does not work Android devices Tested in 4.19.2 (CL - 4033788), 4.20.2 (CL - 4302132), 4.21 (CL - 4313833) ...

Massive FPS drops in editor when moving mouse over menu items on Linux

UE - Platform - Linux - Apr 22, 2019

Navigating various dropdown menus in the Editor causes the FPS to drop down to around 25 or 10 in the Viewport on an empty project. This does not reproduce on Windows with -vulkan This issues was ...

PIE with single process starts multiple server windows

UE - Anim - Sequencer - May 26, 2020

Playing in editor with single process starts multiple server windows. ...

iOS launch screen might briefly appear in Portrait before switching to Landscape

UE - Platform - Apple - Nov 13, 2023

Sometimes on the first launch of the game after install, the launch image will be a cropped portrait drawn in landscape orientation, on the left side of the screen, with the top and bottom getting c ...