add_possessable doesn't work for all objects

UE - Anim - Sequencer - Jun 17, 2019

Using following code in Python: seq.add_possessable(seq.add_spawnable_from_class(unreal.CineCameraActor).get_object_template().camera_component) doesn't create a camera component track in sequen ...

Replay System throws an Ensure during demoplay when calling it in a different Level

UE - Networking - Jul 10, 2019

Replay System throws an Ensure during demoplay when calling it in a different Level. The error is thrown at Source\Runtime\Engine\Private\RepLayout.cpp]. It does not prevent the Replay from being pl ...

Level sequencer's play to(second) function not working as expected

UE - Anim - Sequencer - Aug 22, 2019

The function Play to(seconds) does not functions as it's tooltip implies. "Play the sequence from the current time, to the specified time in seconds". The function instead snaps to the specified tim ...

"Simulate Selected" overwrites "Physics Type" property when playing in Editor

UE - Simulation - Physics - Sep 5, 2019

"Simulate Selected" overwrites "Physics Type" property when playing in Editor. In any subsequent PIE sessions SK_Mannequin will simulate physics even though the option is toggled off. This was repo ...

Attaching a removed Actor in Sequencer causes a crash

UE - Anim - Sequencer - Jan 6, 2020

This is a regression from 4.23.1 (CL-9631420) where Sequencer just displayed the re-attached binding in yellow text instead of crashing. The user suggests that the deleted actor should be removed fr ...

Using ServerTravel <MapName> command with Seamless travel causes level blueprint logic to not run on client

UE - Networking - Jan 14, 2020

When calling the ServerTravel command when using seamless travel, level blueprint logic is not being run on the client side.  NOTE: Adding a small delay (tested with .2 to 2 seconds) after the "B ...

SSGI doesn't function properly using Vulkan

UE - Rendering Architecture - RHI - Jan 20, 2020

Screen Space Global Illumination appears really dark when using the Vulkan RHI on Windows and Linux. This behavior is also present in a Shipping build. This was reported and tested on 4.24.1 (CL-1 ...

Cannot copy and paste cloth config parameters

UE - Simulation - Physics - Character - Apr 23, 2020

Copy/pasting cloth configs used to be possible in 4.23. It then got broken in 4.24 (crash) with the introduction of changes required for the new physics engine. In 4.25, the config evolved to a Map ...

Crash when drag selecting a level in an orthographic view with a control rig asset

UE - Anim - Rigging - Control Rig - Feb 11, 2021

When adding a Control Rig asset to a level, choosing one of the orthographic views, and then drag selecting any part of the level, the editor crashes. This does not occur if you drag select in the p ...

BP multi-level inheritance does not correctly inherit 'Static' mobility

UE - Framework - Blueprint - Sep 8, 2022

User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...