I've had problems with the regulator as well. Buy a spare - You can get one from camp chef, but stansport fittings work as well and are cheaper. You can also get one that is on a hose instead of the hard pipe, which is easier if your using a bulk tank.
There is a lot of discussion on this issue in this thread: https://www.mountainbuzz.com/forums/...ure-84274.html
including a nice write up on another solution direction from camp chef.
I love the stove and wouldn't trade it for a partner... what I'd like to do is build a more robust stove around the burners - including a different regulator set up.... but that's for another discussion.