Crash editor when open the level sequencer after updated 4.20

UE - Anim - Sequencer - Jan 8, 2019

When migrating from the version before 4.20 to the version after 4.20, opening the level sequencer will crash. I think that there is a problem with conversion from SnapTimeInterval (FixedFrameInterv ...

Multiple Blueprint compilation passes required to fix up event binding to dispatcher after event rename

UE - Gameplay - Blueprint Compiler - Nov 30, 2021

Renaming a custom event bound to an event dispatcher via a Create Event node requires two compilation passes to fix up the binding.  upd. Regression was checked on //UE4/Release-4.26 CL 15973114, i ...

Unable to launch version 4.24.1 after fresh installation. Assertionfailed IsValid()

Tools - Dec 31, 2019

User is receiving a crash after a brand new installation of version 4.24.1 NOTE: User is able to launch 4.20 - 4.23.1 without issue. "I tried reinstalling the editor build, updating all of my dr ...

Setting Fullscreen Mode to "Fullscreen" results in Crash when using 4.23 from source

UE - Rendering Architecture - RHI - Oct 11, 2019

Changing the screen settings to Fullscreen through code or blueprints results in a crash. This only happens in the source version of 4.23 and does not occur in the binary version of 4.23. I have att ...

Bulk Edit via Property Matrix menu is not appeared for Materials in Content Browser on 4.8

UE - Editor - Content Pipeline - Content Browser - May 20, 2015

Bulk Edit via Property Matrix menu is not appeared for Materials in Content Browser on 4.8, but 4.7 can show and edit with Property Matrix. Screenshot: attached. ...

FScreenSpaceData in Material Custom Expression Does Not Work in 4.19p2

UE - Graphics Features - Jan 26, 2018

When creating a Post Process material in 4.19 with a Custom expression that uses FScreenSpaceData, material editor is unable to compile, and material renders incorrectly. This does not happen in 4.1 ...

Resolution issue causes large black bar on Galaxy Note 4 when app starts

UE - Platform - Mobile - Aug 2, 2016

This issue only seems to affect the GalaxyNote4_5543 OS: 4.4.4 This issue is NOT occurring on devices with the same GPU This issue is NOT occurring on devices with the same OS If you lock the scr ...

When a fixed delta time step of 0.02 or higher is used with some skeletal mesh objects, rotational forces applied using AddTorque have no affect on the skeletal mesh.

UE - Simulation - Physics - Jan 27, 2015

Using AddTorque to apply a rotation to a skeletal mesh does not always provide the expected results if a fixed time step is being used. When doing this to the Owen character in the Content Examples ...

Mobile Multi-View 4.23 preview regression

UE - Platform - XR - Jul 18, 2019

Black-screen when mobile-multi view is enabled in 4.23 preview.  Also confirmed on Oculus Go. +Occuring in 4.24 MAIN @ CL 7436536 Sidenote: In all tested engine versions - when enabling/disabin ...

"Play Rate" below 1 and "Force Fixed Frame Interval Playback" causes choppy renders

UE - Anim - Sequencer - Jul 12, 2016

"Play Rate" below 1 and "Force Fixed Frame Interval Playback" causes choppy renders. This was explained by Max on Answerhub to the user, but this seemed like something that should be bugged and loo ...