Why does it miss even if the opponent is not even 1 step away from you?
Does it have a really really small hitbox?
lp tornado has the most range, hp has the least. mp is somewhere in between and EX is similar to mp.
Get familiar with the ranges, HP has a tendency to whiff if you aren’t point blank/tick with more than one light attack.
If you’re positive they’re in range and it STILL misses, they’re either in hit or block stun.