User is able to move objects with Static Mobility on Begin Play

UE - Gameplay - Sep 19, 2016

The user is able to move objects with static mobility on Event Begin Play, which shouldn't be allowed. ...

Cannot set auto success range to an invalid value in the AIPerception component

UE - AI - May 3, 2019

When modifying the value of "Auto Success Range from Last Seen Location" to a value that is not it's default, you can not set it back to its default -1 one value. This was reported and tested in 4 ...

Preferred Angles Don't Work on Manny Thigh

UE - Anim - Rigging - Apr 29, 2024

Child Actors are not replicated to clients when the parent blueprint is nativized

UE - Gameplay - Feb 22, 2019

Child actors do not replicate properly to clients when their parent blueprint is nativized. Regression?: Yes This did not occur in 4.20.3 See also [Link Removed] ...

GeometryCollection with StripOnCook and without EnableNanite causes a crash in cooked game

UE - Simulation - Physics - Destruction - Jun 16, 2023

The Strip on Cook option seems to strip even necessary data. ...

Particle System Components don't inherit owner's time dilation

UE - Niagara - Feb 7, 2020

This is a regression introduced by the particle system manager. It does not account for the owning actor's time dilation when ticking the particle system components.  ...

DBuffer Decals render on top of Foliage

UE - Graphics Features - Sep 18, 2015

This is the same issue found in [Link Removed]. Foliage will not act as an occluder as expected with painted foliage. [Image Removed] Also reproduced in Main CL-2689138 ...

Bloom artifact showing in splitscreen settings

UE - Graphics Features - Jan 15, 2015

There is a bloom artifact at the top of the bottom player's screen. ...

Startup Movies Fail to Play when Audio Devices are Disabled

Tools - Feb 1, 2016

If a user launches a project in Standalone mode and has a Startup movie while the audio devices on the computer are disabled, the movie will fail to play. As soon as you re-enable an audio device, ...