I'm a little confused. Is your entire
tank spinning, but not the drip tip? That's not making a ton of sense to me.
However, yes, if your entire
tank is spinning and you can't achieve a connection there is SOMETHING going on with your 510 connection. When you get home, remove it and inspect both sides of the connection, the tank and the mod. If you have another tank or mod, that may help you isolate if it's the tank and stripped threads, or something going on with your 510 connection in the mod. If you don't have that option taking it to a decent B&M if you have one near you may help you figure out what the problem is, and how to solve it. If it's under warranty, then that is an option as well.
Best of luck getting it figured out
Anna