One of the reasons I always recommend developing free hand sharpening as a skill is because it allows you to understand the basics of blade edges a bit better.
Don't get me wrong, the Sharp Maker can get a blade sharp enough to whittle a gnat's hind quarters. However i still like to free hand.
Jeff is probably onto something. My guess is a wired edge and/or a thicker grind.
Steel that is honed can be left with a very thin edge that will readily take the hair off your arm. However, once it encounters material of any substance that site will roll over and deform.
Check the edge carefully with your thumbnail to see if it fits or bites or drags. Carefully thumb the edge by running your thumb from the spine up to the edge flat along the broad of the blade. One side or the other may have a tiny wire folded down enough that you'll feel it drag on your skin.
I'm a convex guy. I have been for over 15 years and it continues to be my go-to edge profile. So in your situation I would make sure the edge is nothing more than a floppy wire and not real damage or missharpened then strop the edge on a piece of loaded leather until you can no longer detect the site dragging.
You'll probably be left with a more durable edge that will still take hair off your arm. The only draw back is that it's probably not going to shave the ink of newspaper (at least until you really get the convex thing down), but given the type of steel you are working with it shouldn't matter.
Good luck