WorldSettings Blueprint crashes editor when saved/compiled

UE - Gameplay - Blueprint - Feb 12, 2019

Making a Blueprint instance of the AWorldSettings class, then saving/compiling instance Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 4958363) ...

Negative Play rate in an Anim Sequence added to a Montage Causes timeline to collapse

OLD - Anim - Jan 14, 2015

Adding animations with a negative play rate (playing backwards) or modifying existing animations in a montage to have a negative play rate causes the timeline in the montage to "squish" and is no lo ...

libPhysX3 iOS Bitcode packaging Error with github branch

UE - Platform - Mobile - Mar 13, 2019

Unable to package a CPP project with Bitcode enabled "the github branch uses' GitDependencies' which downloads additional files such as the physx file in question which has the problem" mac/Bina ...

Functions containing Unicode characters break nativization on Clang-hosted target platforms.

UE - Gameplay - Blueprint - Sep 15, 2020

The UHT boilerplate code that's generated from a converted Blueprint class header file generated from a Blueprint class containing one or more function names with non-ASCII characters will fail to c ...

[daydream] Black screen with FirstPersonTemplate and 4.15P4

UE - Platform - XR - Feb 17, 2017

https://answers.unrealengine.com/questions/561763/daydream-black-screen-with-firstpersontemplate-and.html Any msaa setting except none results in a black 3d scene on daydream. ...

Can't inherit from ALight without a linker error

UE - Gameplay - Feb 22, 2024

This is a regression from 5.3. It should be possible to inherit from ALight outside of the engine module without any sort of errors. Case: [Link Removed] ...

Blutility changes are reverted when compiling an actor

UE - Gameplay - Blueprint - Jan 16, 2018

Some information is not retained when compiling an actor if the information was changed via a blutility event. Additional info. Adding a static mesh component to an actor will not be retained on ...

Collision preset in StaticmeshComponent in BP instance can not be correctly modified

UE - Simulation - Physics - Jul 3, 2020

For staticmesh component in a staticmesh actor instance, the collision preset can be modified correctly. ...

Output warning log when import .paper2dsprites file

UE - Gameplay - Paper2D - Nov 21, 2020

When import .paper2dsprites file, always output warning log. It seems missmatch URL TexturePackerPrefix and AppName with metadata. - PaperJsonSpriteSheetImporter.cpp const FString TexturePacke ...

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. ...