Recently received a Yocan Magic Stick concentrate vape/batt unit.

The issue I have is that the small metal cap that threads on top of the battery(side nearest power button) into which the xtal tip screws onto is blocking the two air holes on the main battery section. I can’t get any draw, no vapor comes to my mouth! However, when I replace that part from another “ Magic stick” onto the other unit it now works! This means the culprit is the metal ring. It’s black on all colors and may be cut/threaded too deep? Hard to figure out exact defect.

So in the end looking for a couple of the metal caps as described in an effort to prevent a return hassle. I would even be willing to buy them for reasonable amount.