Assessing a new pipe, whether it has a problem or not takes a level of experience with different pipes, that I am not sure Machado has yet. If he had a rack full of great smokers, and one that fits what is described above, then yeh. We would have something to go by. But, Machado, has been struggling with every aspect of pipe smoking... all of which could have been remedied by going to a B&M and hanging out with other guys smoking pipes, but (like so many on here) he doesn't have that luxury. All he has (unfortunately) is us.
I suggest, just keep smoking that pipe, and pick up a few more. It may very well turn out that this one gets back shelf in your rotation, or it may turn out to be the exemplar of excellence in your herd. But, for now, there's really not much anyone can do. But, once you get a few prized burners on your rack, then you can readdress the issue.
Pipe smoking has a rough learning curve. Just as no one ever picks up a lathe and makes a fantastic pipe on their first go around, hardly anyone has ever just picked up a pipe and fallen into bliss with perfect smokes right off the bat. It takes time, and yes it is not easy. But, if you stick with it, everything does become easier. Then you can fret over whether this or that new tin of so-and-so tastes the same as it does, and you too can rail over the injustice of a blend changing its recipe, like Three Nuns or Erinmore.
Get more pipes. The odds of picking up duds over and over are pretty slim. I have only ever gotten two of what I think of as bad pipes out of over a hundred. Get cheap bucket pipes, estate pipes, maybe a more expensive one here and there. Learn how each wants to be smoked best, and then after you have a few years with other pipes under your belt, return to this issue with this pipe. Just take it easy. Try to find a way to enjoy each pipe, and have fun. There is nothing serious about pipe smoking.