Unreal Engine Issues

Niagara Regression - Looping particle with Spawn Burst Instantaneous on time 0.0 flickers for a frame between loops

Note: This worked correctly up to UE 5.4, but repros from UE 5.5 up to mainline latest. If a Niagara Emitter is set up with "Spawn Burst Instantaneous" on time 0.0, and the spawned particle(s) have ...

Setting linear dampening during runtime via the event graph does not work for separated chunks

DESCRIPTION: When using a DM in blueprints and setting the linear dampening in the event graph the DM will honor the linear dampening but the chunks as they break off will not. Setting the mesh to ...

BP with Show 3D Widget enabled does not display the correct vector values in the bp editor

BP with Show 3D Widget enabled does not display the correct vector values in the bp editor. Note: If you don't see a difference at first, delete the bp in the level and place it again. The widge ...

Destructible Meshes that are fractured while using moving will rest and then move the whole components fractures as a whole

DESCRIPTION: When a destruction mesh has been setup to move to a location or use a lerp if it is destroyed the components will fall, come to a rest, and then the entire destruction destruction mesh ...

Removing Pose from Blend by Enum causes compile error with float defining blend time

Removing Pose from a Blend by Enum node can cause compile errors when a float is defining all of the blend times. ...

Incorrect number of vertices displayed by ProfileGPU command in Cascade particles

This issue was reported by the licensee, but it's possible that the number of vertices in the particles is higher than it really is. ...

Destructible Event OnComponentFracture fires multiple times when Debris flag is enabled.

When using a Destructible that is using the Event OnComponentFracture and the flags for Debris timeout/max separation and Debris Enabled will cause the event to fire for each chunk removed from the ...

Destructible mesh does not trigger overlap event for objects/pawns that are not moving

DESCRIPTION: When using the generate overlap events for a destructible mesh with Static Mesh or skeletal mesh that is not moving will not generate an overlap event to be triggered. So long as the me ...

When the AppleProRes plugin is enabled, the playback speed of the video changes in the MediaTrack sequencer.

Parent Begin Play node does not appear to run the parent code class BeginPlay() function before the rest of the Blueprint's Begin Play functionality

If a Blueprint event graph contains a Begin Play node that connects to a call to the parent function, the functionality present in the Blueprint Begin Play segment is run before the parent Begin Pla ...