Restore State for Make MovieSceneSequencePlaybackSettings Not Resetting Sequencer State Appropriately

UE - Anim - Sequencer - Oct 3, 2017

Restore State should have an affect on sequencer. The animation snaps back to its starting point even when this option is not set if played in PIE. If you drag in the level sequence in the editor an ...

Incorrect box collision on negatively scaled mesh

UE - Simulation - Physics - Jul 23, 2018

If you have a mesh with a rotated box in its simple collision primitives, that box won't be in the correct position if you scale the mesh by -1. This issue was reported in 4.20 (CL-4212847) and rep ...

Curl Noise Force Not Applying to Niagara Emitter

UE - Niagara - Jul 30, 2018

Curl noise force will not affect a Niagara particle regardless of strength. Current work around is to disable then re-enable "apply forces" under "solve forces and velocity" Found in 4.20 CL# 4233 ...

Alpha Compression Artifacts

UE - Graphics Features - Nov 23, 2018

Confirmed in Main 4.22 @ CL 4586854 in 4.21 Alpha looks to be about 1 pixel larger than other channels in certain parts of the texture "The issue is not improved by changing compression settin ...

Unable to change Blueprint Child Variable values in Python

UE - Editor - Workflow Systems - Dec 20, 2018

Using the Python function unreal.SystemLibrary.set_bool_property_by_name() to change the default variable values of a child Blueprint do not work as intended. Tested in 4.20.3 (CL - 4369336), 4.21. ...

Set World Origin on a Dedicated Server causes Pawn Stuttering

UE - World Creation - Worldbuilding Tools - World Composition - Jun 10, 2019

Setting the World Origin after enabling Multiplayer World Origin Rebasing in the Project Settings causes the Pawn to flicker on movement. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4 ...

Early Z-Pass no longer works

UE - Graphics Features - Jun 11, 2019

Since 4.22.2, the Early Z-pass flags are being ignored, resulting in the number of draw calls to increase. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4.23 (CL - 6925347) ...

Texture Object Parameter Being Read Even If It Is Not Used In a Material

UE - Graphics Features - Jul 17, 2019

Texture Object Parameter Being Read Even If It Is Not Used In a Material.  Working as expected in 4.21 CL# 4753647 Found in 4.22 CL# 7053642, 4.23 Preview 2 CL# 7321677, 4.24 CL# 7329126 This is ...

Spline points deleted after movement

UE - Editor - Workflow Systems - Sep 6, 2019

Spline points are deleted from the Spline component after adding them in Python and then moving them in the scene. Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), 4.23.0 (CL - 8386587), 4.24 ...

Long Load Times With PIE When Using Tessellation On Landscapes

UE - LD & Modeling - Terrain - Landscape - Sep 24, 2019

When having large landscapes with a tessellated material, loading time after hitting Play in Editor is much longer than in 4.22. Found in 4.23 CL# 8386587 and 4.24 CL# 8971176 Working as expected ...