I find that when I hit someone from point blank range, they don't get hurt. For example, I was attacking a guy who was blocking a mining rock (yeah, well I should have

) and the first time I hit him, he was hurt. The second time, he was hurt. So was the third and fourth time. Basically every time I hit him, he was hurt. However, when I opened my RPG window, I discovered that only my first two hits counted as "blows" and the other ones were misses, despite him getting hurt and attacking from point blank. What's going on with this?