Particle Effect with 2D Sprites not using Layers

Hello,

I was recently working on a simple rain system and it does not work as intended.
I discovered that my particle effect is either behind every Sprites, or over every Sprites. I wanted to make it so the Particle System is between these two Sprites, using Order In Layer. To do so, I made the first Sprite Order In Layer : 2, the Particles 5 and the second Sprite 10 (everything in the same layer).
However, the particles take over every sprites when starting the Particle System.

After that, I tried using the Z-axis to move the particle system in a certain way, to make it between the two sprites, but it kept the same issue: either in front of everything or behind everything.

This question has been asked several times but still, I couldn’t solve my issue.

I guess I am doing something wrong, but is there any way I could use layers with this kind of thing?

UPDATE: I found my own solution.
For anyone having the same issue, I recommend doing the same as me: create a new rain particle system using this tutorial.
For my part, I think it was a conflict between a parameter of the angle of my particle system and the layer (it wasn’t falling straight, but in a curve as a waterfall).