Toggling ULevelStreaming::bShouldBeVisible causes replication errors

UE - Networking - Mar 17, 2017

Looks like the replication system doesn't properly account for bShouldBeVisible. Once a level has be marked bShouldBeVisible=false on the server, the level is completely cleaned up and all actor cha ...

Component Array doesn't update properly when using Text Variables

Tools - Sep 19, 2018

A Component Array doesn't update properly when using Structure Variables. Any array elements added after the setup don't get printed when the event is called. If you set the "Editable when Inherited ...

Crash in Android media plugins on Adreno devices with letters in version

UE - Platform - Mobile - Mar 2, 2022

The logic to check the version number of Adreno devices does not work if there are letters in the version (like Adreno 642L). ...

Refraction not calculated when using Material Property Overrides Blend Mode

UE - Graphics Features - Sep 10, 2015

Found in the process of replicating the linked Answerhub. When an opaque material is setup as a master material with the intent to have an Opaque and Translucent version, the material instance will ...

UTF-16 characters return incorrectly from StringToBytes/BytesToString conversion

UE - Foundation - Core - Jul 28, 2016

When a UTF-16 character (™ for example) is passed into a StringToBytes() function and then returned via BytesToString, the returned character does not match (in the case of ™, a double quotes is ret ...

Shots have little visible indication when they are overlapping

UE - Anim - Sequencer - Sep 15, 2016

Shots have little visible indication when they are overlapping. This can cause some visual confusion as to why events and spawnables from a shot that looks like it should end are still triggering ...

Decal Fade Out does not cause decal to fade, destroys decal at end of fade time

UE - Graphics Features - Jul 27, 2016

Decal Fade Out does not cause decal to fade as expected. Instead, after the delay and fade time, the actor is destroyed with no noticeable fade during this time period. ...

Instanced Foliage Actor painted on an Actor who is attached to a Parent Actor, does not update transform when Parent is moved.

UE - World Creation - Worldbuilding Tools - Foliage - Dec 2, 2019

Instanced Foilage Actor painted on an Actor who is attached to a Parent Actor, does not update transform when Parent is moved. Note:  The foliage will move if the base actor is moved directly, inde ...

Niagara Particles do not respond to Set World Origin Location

UE - Niagara - Aug 17, 2020

Setting the world origin will not update existing Niagara particles. ...

Rendering from the Movie Render Queue at runtime while using the current level will fail, even when the levels match

UE - Anim - Sequencer - Jul 22, 2021

When Use Current Level is true, the MRQ tries to validate that the maps are the same, but this will fail when the maps actually do match.  The Use Current Level flag should allow the render to cont ...