Chan Eil Whiskers
Fumbling about.
The first thing I would suspect after only a few weeks is technique - some combination of angle and pressure. When I had been shaving for a couple of weeks, I hit a similar rough spot, and thought my edges had gone south. It caused me to do a whole lot of unnecessary honing, and I even swapped razors with a mentor here who sent me a razor he had honed, and I sent him one of mine. That experiment showed very plainly that the edges on my razors were just fine. That meant that it was user error.
As frustrating as that can be, it does get better. Some of it is just practice. Some of it is trial and error. Some of it is perspective, as when you start to get some consistently decent shaves, the frustration suddenly seems trite and overblown.
While it is surely possible that something has gone awry with the edge of your razor, it is more likely pilot error. Remember that back when straight razors were the only tool available, young boys learned to shave when they still had fuzz. By the time their beards were as developed and tough as yours are now, they had several hundred shaves worth of experience to lean on. You're trying to tackle this learning curve with a man's fully developed beard growth. That will make this more difficult. Keep at it, and it will improve!
Excellent advice!