Niagara amount of particle limit

Hi,
Once i open the niagara editor it seems that i can have less particles in my scene.
when i open my project i have a NS with more that 4.6 milions particles but once i open the niagara editor the system in my scene emit less particles (around 2.3).
Is there a settings i can change to avoid that problem ?
I’m using ue 5.0.1 on windows
Cheers,
Colas

It seems that the limit is per emiter and not per system if i have multiple emiter in my system i can go above the 2.3 millions particle limit.
But it still the same problem when i open my project one emiter in a NS can have more that 2.3 millions particles but once i open the niagara editor i get to the 2.3 millions limit and it doesn’t change even after i close the niagara editor