When the particle system manager is enabled particle system components will always tick in start physics

The particle manager only accounts for the particle system component's attach parent's EndTickGroup. When setting the tick group through the actor component the TickGroup is set instead of the EndTickGroup. The EndTickGroup will be the default value of 0, so the particle system manager sets the component's tick group to the same value every time.

1. Create a blueprint actor
2. Add a particle system component to the actor
3. Set the particle system to a beam component with a source module (set Source, Source Tangent, and Source Strength to 0)
4. In the actor's construction script set the attach parent's (root scene component) tick group to post update work
5. Set the actor's tick group to post update work
6. Move the actor 10 units in any direction in its tick function
7. Add the actor to a level and play
8. Follow the actor as it moves

RESULT

The beam lags behind the actor.

EXPECTED

The beam should follow the actor, you can verify intended behavior by disabling the particle manager with the console command fx.PSCMan.Enable 0