I've had blades like that from over honing, or the edge is to thin and starts to crumble. Try starting on a 1k with a raised spine and x-strokes until the chips are gone, then go to circles or x-strokes until it cuts arm hair, check the edge with a eye loupe or whatever you use and make sure they are gone, if not repeat or drag the edge across a corner and repeat the circles and edge strokes. Once the edge is perfect then hone as usual.

I hope this helps