I should have advised you to reprofile the heel first, so you would have had more control over the edge removal as in photo 1.
But now you can still reprofile what is left of the heel. It will not be much of a radius and probably more like a 45-degree cut, but it will move the corner of the edge away from the stabilizer and tang. Photo 2
As it is now, the only way to hone the heel is to place the corner of the stone right up against the stabilizer and carefully hone it. If the radius on the stone corner is too great, it will not reach the corner of the heel.
So, cutting the heel at an angle will move the corner, (Yellow Arrow) away from the stabilizer about a ¼ inch more, the (blue arrow).
The green arrow is where it has ridden on the tang. This is the cause of all your issues.
Attachment 320984Attachment 320983