It seems that while the SB works perfectly for 99% of people, there is a decent amount of posts here & around the 'net about button woes, exhibiting the symptoms exactly as you describe i.e. - misfires. I'd contact AltSmoke immediately. There's always the one or two bad apples that pass QC but aren't quite perfect.
And don't feel bad, heck, I helped a fellow ECF'er all last week trying to nail down why his Prodigy wouldn't work, & the Prodigy is a
mechanical mod, which in and of itself is supposed to be a bulletproof category of
mods. (Ended up being an adapter threading issue and defective center pin.) So as they say bud, sometimes stuff happens.
Good luck. I hope you're able to get back to
vaping normally asap.