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 ...

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 ...

Issues with translucent material when using sceneColor node.

UE - Graphics Features - Oct 11, 2019

Issue seems to be linked to Eye Adaptation. Turning it off results in the sphere to be invisible. The attached image shows the output of the editor versus game mode (cooked or -game) This shader w ...

Duplicating two nested components do not appear in the Component tree until the blueprint is compiled.

UE - Gameplay - Components - Oct 23, 2019

REGRESSION: No, this occurs as far back as 4.22. Duplicating two nested components can result in the duplicates not being visible in the component tree in the blueprint editor until the user compil ...

Parameters Pane shows different Variable Name then MapGet or MapSet

UE - Niagara - Mar 12, 2020

Variable names aren't displayed in MAPGET and MAPSET the same way as they are in the Parameters Pane. This is a regression from 4.24.3 (CL-11590370). This issue was reported and tested in 4.25 Prev ...

Niagara Sphere Location module ignores Coordinate Space setting in its Offset

UE - Niagara - Apr 14, 2020

Niagara Sphere Location module ignores Coordinate Space setting in its Offset. Tested in: 4.24.3 CL#11590370, 4.25P6 CL#12611535, 4.26 CL#12767035 *Attached is the users workaround and video d ...

Undo change to Rest Offset causing crash in Static Mesh Editor

UE - Runtime - Simulation - Aug 8, 2023

When undoing any change to Rest Offset for a collision mesh the engine will crash. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binary //UE5/Release- ...

Free physics constraints between two objects of differing size causes smaller object to jitter

UE - Runtime - Simulation - Sep 13, 2023

A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...

Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly

UE - ACT Character - Retargeting - Feb 13, 2025

Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted.  Users have to refresh the properties that select the base pose in order to fix the ...

Niagara - The "Apply" button on the toolbar does not get enabled when changing the checked state of an entry in "Propagated Static Switch Values" for a function call node.

UE - Niagara - Apr 7, 2025

Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. Now consider another Niagara Function Script or Module Script ...