I agree with Paul. I think I see some micr chips on the edge in the middle picture.

Using a pasted strop after a good linen stropping might bring them back to shaving readiness.

If that does not work, I suggest breadknifing the edge by LIGHTLY running the edge over the edge of your 8K and then using several X strokes on the 8k to bring the edge back. Then follow up with the pasted strop and see if that helps