@JonaQ I've tested Primo replace and it worked properly.

Does this extend to all of your replace cars or just the kangoo?

Only passengers side and front window works on Kangoo and this problem still persists on some cars from LSPD pack. The latest update is a good occasion to reinstall all of my mods because i've lost all edited files in update.rpf file.

Do add-on cars work?

Yes.

Does your Trainer have a vehicle invincibility setting? Make sure it is Off.

It's off.

I'll write when i install all mods.

Any idea how to solve this issue?

@JonaQ Glass is fully breakable in this car. I am using ENT too. I'll try to reinstall the Kangoo and i'll see how it works.

EDIT: Now I can break front window and passenger's side window, but I still can't break driver's side and rear window.

Many thanks! I'll test it tomorrow because it's 10 pm in my country and I must go to bed