Yes, I am following the takedown procedure. However, I have found what seems to be the problem. There seems to be a bit of a metal burr that is preventing the rearward portion of the lever from clearing the frame. I had to use a thin tool to gently lift the lever over the burr. It probably can't be seen too well in the pictures, but the burr is easily felt with a finger. But, it's a minor inconvenience and hopefully will disappear with wear.
But I am curious about another issue. I have called Questar and sent them an email via their contact page. They were closed for the day, and so hopefully, I will hear back tomorrow. But, I am going to post an additional pic or two here of the issue for reference just in case they didn't make it through cyberspace via Questar's contact page. The issue is...is the following a crack in the chamber area, or a machine mark? Running a fingernail across the line, results in the nail catching.