I want to detect an arrow every tick. Is there any event that can help me achieve this?

I have tried using the LivingGetProjectileEvent, but it only updates a few times and then stops, even if the arrow is still in the air. Additionally, this event only provides information about the player who shot the arrow.

and what do you want to accomplish?

I want to create a particle Trail for an Arrow

 

all entities tick all the time, including projectile entities.

respond to entity tick event, check the side (client), check total world ticks (you don't want particles 20x per second so you'll ask if total time modulo 20 is 7 or something like that), check that the entity is your projectile, check that it isn't dead/removed, check that it is moving (entities remember previous position).
then pop a particle.

How do I get the arrow entity then?

 

 

6 hours ago, Stynxyxy said:

How do I get the arrow entity then?

event.getEntity().             tick event (every instance of it) exists so that you can do things when the entity (your projectile) gets one tick older.

just subscribe to the tick event (LivingUpdateEvent).
use the logger (or just system.out.printLine) and print out important things in event object.