Wow, he really did a great job with the scabbard- loving the griffin! I'm with Sir Edward, most likely a seam got separated- if you push the blade in til you get to that point, put your finger around that area and look and feel for any movement under the leather near the point of the scabbard, you might then catch it, so to speak. I can't tell if you have a metal or leather chape- if its leather, you'll have a better chance of feeling that separation but either way, you should be good. The chape will keep that section of the scabbard intact.