I've done some tests with swords and it appears that when you're comboing with a sword, hitboxes are not well placed according to the animations and have their reach greatly diminished in comparison to the first hit wich is always stationary, unlike the rest of the combo.
It seems as if all the hitboxes only originate in the point the player was standing before the swing instead of where it should be (in front of the player)
I've also made a video about it with the tests I've made and also showing the problems with sword combos: https://www.youtube.com/watch?v=7hlbGagXtFU
Thx.