I'm using 3.3.1.32.
This is the comparison between hm2 and h2n.
This is what happens when I try to import hands. From the image it can be seen that H2n recognizes the total number of hands (464) but considers them all duplicates.
So I decide to clean up and build the stats again (this is the third time). As in previous times, the number of hands changes this time too. If I repeated this last operation I would get a different number of hands (with different statistics).