Maybe. Are you following some sort of a stealth counterfeit/printing guide? Because there are things you have to do before blowing up the safe so you can stealth it. If you're doing everything right and it's just the safe blowing up that ends your stealth then you might've installed the mod wrong.

I am following Marcmb's 201 update tutorial. I have SuperBLT and Beardlip installed, i do the bag trick, the cops get stuck all civs are tied/dead, the shields spawn i kill them, but when the safe explodes the heist goes loud. Btw thanks for awnsering, this mod has more than a year.