I have these replays, and I did not edit anything in the notepad or hacked anything to get any of the dms.

The example1 replay shows 6 dms, but if you go to frame 1862, press E and then space, it's clear that the lumbar did not dismember. The example2 replay has the same problem. Go to frame 104, press E and space. No boomhit, while the full replay clearly shows a 3 dm boomhit.

I just want to know why this happens, and if possible, how to fix it.
Thanks in advance.

Hey,
On the first replay the lumbar dm is actually still happening to me, so I'm not so sure about that one.
On the second replay though it seems to be the bruise glitch. When you hit a joint but don't dm it, it bruises, turns red and can be dm'd with less effort with another hit.
While watching the replay normally, the bruise wears off, but if you shift+p from the moment you bruise and on, the bruise remains, making it easier to do dms on that area.
So when you were editing the replay, you probably used shift+p from the moment you had first hit the lumbar area, to the moment you made the boom. While watching it and pausing right at frame 104 though, the bruise had weared off, and it didn't dm anymore.

Fixing it is basically just doing it again without shift+p, but in my opinion, it doesn't really need to be fixed, only if you intended to beat a record. Otherwise it's fine, since only a few of the more technical replay-makers know about it and normally don't mind.

If you want more info about it, you can always ask Tamer0, he's pretty much the man when it comes to this kind of stuff.

Thank you, I didn't know about that glitch, so that should explain it.