Ahhhh, so you've got 3 magnets.

I've heard a bunch of the 4nine clones have serious issues with either spacing or cheap magnets or such, but the 4nine can have problems with shorter 510 connections in general. Normally you can put a magnet on the positive side of the battery if you're having spacing issues, but to be frank I don't know the full quirks of that clone issue to point you in the right direction. Maybe this'll bump it and someone with more knowledge'll see it.
I will warn you that if you are using an atty without an extended 510 on those things can get weird real fast causing shorts & lots of heat, so be careful.