I just tried all four settings with my D600, Lossless 12, Lossless 14, Compressed 12 and Compressed 14, and they all show up correctly in View NX2. What program are you using to show the metadata? It's possible that some programs may not recognize the data since it's a new camera.
I can't imagine that your version of CaptureNX2 will not show you the correct metadata, and I would try my four shots with it, but I erased them after I did the test for you. However, in View NX2, and you have to have the latest version, I go to View at the top, click Thumbnail Grid, and in Window I choose Edit. Then, when you double click on your thumbnail, there is a panel on the right that has "Adjustments" and "Metadata>' Close "Adjustments" and open "Metadata" and voila.
Thanks, I have not used View NX2 very often, I found the metadata and each of my images is at 12bit. The same as in Capture NX2. I have, now, reset my camera to default settings and then made only one adjustment 12bit to 14bit. I followed the instructions per the manual. Still, all images are captured at 12bit. All images were shot in RAW, if that matters.
I'll send you an email with my phone number. If you would like, call me this evening when we both have our cameras in our laps and I'll go through the steps that I used one by one. I think that there is a one hour time difference. I'm usually home by 5:00 p.m. CST.
Gary and I went through the various menus and choices on the phone. We methodically took 5 pictures after selecting the required menu items and then looked at them to see what the metadata disclosed. Mine showed both the 12 and 14 bit depth images, but his only showed the 12 bit depth images. My camera has a serial number that begins with 301 and his with 300. He is going to send his camera back for a replacement.
Sorry for the delay in responding but this website was blocked by my system. As JP stated, I could not engage the "14bit depth" option. I have returned the camera to Amazon and should receive a replacement shortly.
I guess that I had a glitch in the camera's system; however, I do not think that this is a wide spread problem as surly someone else would have posted concerns somewhere online.