what problem?

the fact that sharpen weapon crashes the game @ level 3 now?
or the fact that there is a huge difference in the damage if you have level 1 sharpen on a weapon, then level 2 then level 3 vs sharpening the same weapon with just level 3?

that seemed a little silly to me. if the weapon was sharpened nicely at level 3 from level 2 from level 1 then a weapon freshly sharpened with level 3 should just be the same and one where the skill was stepped up at each sharpening.