By default it takes 9 Clicks to fire 1 rocket (this can be lowered through augments). It would take 18 clicks to fire 2 rockets every min, which means assuming you haven't lowered this you would be auto-firing between 1 & 2 rockets every minute since you have 17 clicks per min. Rocket Launcher auto-fire isn't affected by manual clicking or any of the other click weapons auto-clicks.
I found and fixed error with erased save, it should be fine now. For these who didn't had issues with saving before last update. I deeply apologize for the inconvenience, and if someone wants to get a custom save, rather to start from scratch, pm me. I'll try to make something close to what you had.
What JS error?