MaterialInstance ScalarParameter's desc can not upadate.

UE - Rendering Architecture - Materials - Jul 19, 2017

When this problem occurs, "MaterialExpression" is null in FMaterialInstanceParameterDetails::GetParameterExpressionDescription. ...

Collision for hidden mesh is not displayed in PIE using Showflag.collisionpawn

OLD - Anim - Oct 23, 2017

When playing in viewport, the user is not able to see the collision of a mesh marks as hidden in game if they run the "Showflag.collisionpawn 1" console command. ...

Non replicated child actors placed in scene not destroyed

UE - Networking - Nov 9, 2017

When a non-replicated actor is destroyed on the client through the use of bNetForce, any child actors that are also non-replicated will not be destroyed correctly. ...

Leaderboards and Achievements are inaccessible in Match3 using a new account

UE - Online - Feb 6, 2018

Ads between matches WERE working, as was the purchase option. This was found in Shipping, but I was able to reproduce and gather logs from Development. This was found on a Pixel 2 on Android 8.1 ...

Oculus Go & Quest: Relaunching app immediately after exiting causes device to freeze

UE - Platform - XR - Jul 26, 2018

4.20 Oculus Go projects cause the device to lock if immediately relaunching after exiting. It does not occur if:You wait ~20 Seconds before relaunchingYou press the power button after closing the a ...

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 ...

ForceActorRelevantNextUpdate will only force an update on the first connection

UE - Networking - Mar 21, 2019

The ForceActorRelevantNextUpdate will only trigger an update on the first connection in the list. Note that the ForceActorRelevantNextUpdate does not work on dynamic actors since their ActorChannel ...

Gameplay Abilities: FAttributeSetInitterDiscreteLevels::PreloadAttributeSetData does not allow FGameplayAttribute.

UE - Gameplay - Jun 19, 2019

Moving from "float" to "FGameplayAttribute" is causing a test to fail. ...

Oculus controllers are hidden in Collab VR template

UE - Platform - XR - Dec 2, 2019

Oculus Rift motion controllers aren't visible and don't respond to button input from the controllers in Collab VR. Found in 4.23.1 CL#9631420 Reproduced in 4.24 Preview 4 CL#10387632, 4.25 Main CL# ...