Simulated actors collide with (but don't touch) kinematic actors.

UE - Simulation - Physics - Aug 30, 2016

Found this while working on [Link Removed] in the Dev-Physics-Upgrade branch (from 3.3 to 3.4). ...

Underscores do not appear in Category names

UE - Gameplay - Blueprint - Oct 31, 2016

Underscores do not appear in Category names within blueprints. Regression (no) issue (does) occur in 4.12.5 ...

The red time indicator for viewing curves in persona is slightly tilted

OLD - Anim - Sep 9, 2016

The time indicator for curves in persona is slightly tilted off vertical. This also occurs in 4.13 main. ...

Widgets in retainer boxes cannot use drag feature

UE - Editor - UI Systems - May 5, 2016

Widgets in retainer boxes cannot use drag feature Regression (No) issue (does) occur in 4.11.2 ...

Unable to escape from the truck in PlatformerGame

Docs - Samples - Jan 17, 2017

Player is unable to break out of the truck using the AppleTV remote or the Bluetooth gamepad This is a regression from 4.14 ...

Retarget manager missing scroll bar

OLD - Anim - Apr 6, 2017

REGRESSION: Yes, does not occur in 4.15 In the Retarget Manager, the scrollbar for the Set up Rig section is missing. ...

Blueprint needs to be compiled if another blueprint sharing an interface is compiled

UE - Gameplay - Blueprint - Aug 29, 2017

Blueprint needs to be compiled if another blueprint sharing an interface is compiled Regression: This does not happen in 4.16 ...

SSR not rendering correctly in SM4 Preview

UE - Graphics Features - Sep 20, 2017

This is a regression from 4.17.2 and you do not need to be in PIE to see the effect. This is not seen in Shader Model 5 ...

Unreal crash on STEP file datasmith import

UE - Editor - Content Pipeline - Datasmith - Importer - May 9, 2018

Unreal Crash on .STEP file using the  Datasmith importer. Works fine in 4.19.2  ...

Mobile VR - Foliage (HISM) crash

UE - Platform - XR - Jun 7, 2019

HISMs cause mobile VR app to crash. Confirmed in 4.23 MAIN @ CL 6829265 ...