How to stop a custom particle from spawning with random sizes

Im modding 1.16.5 with mcreator 2024.3 with 1.16.5 generator.

I'm trying to replicate how barriers use a particle to be shown to the player. I set the scale to 2, but it still does that. I was wondering if there is way to change the code to fix this? Here's the existing code for the particle:

https://pastebin.com/YfsgXcMF