Bad Wika gauge??

I bought a new wika gauge for my fx streamline. It has a really slow leak. I put the end of the air tube in water and it is coming out of the hole in the side of the brass ring on the gauge that you put the wrench on to tighten it. No bubbles from around where the gauge goes into the air tube itself. I tried tightening a bit to no avail. I’m thinking this indicates the gauge itself is bad ??
 
I have a similar occurrence with a Sekhmet Mini on my new Wildcat BT, I really like the electronic gauge for tuning and would like to keep a Sekhmet due to prior experience with the one on my MKII. Trying to work with the company for an exchange. We shall see what happens.
Let me know what happens. My gun came back from fx for a reseal and the gauge had a slow leak I could def see around where it screws in. It was just a little loose as I tightened it a bit and that went away but there were still really slow bubbles coming out of the hole from inside the gauge. Just sucks as I bought it from huma air so shipping it back would probably be costly. Might just get a stock gauge from fx.