Monsters have Luck Evasion?

That's quite possible, yet difficult to prove. I still say it's a glitch.

Luckily for us a glitch is in the eyes of the developers, not the players. Best you can do is ask Nexon before we call it a glitch publicly without proof.

Does this stuff even happen in KR?

KR doesn't have Ninja and probably never will. Updates JP gets related to Japanese culture typically never gets implemented in Korean versions, in all nexon games that I know of.

I didn't use Ninja enough in JP mabi to notice. With a bad connection and all, its not really viable if you're not from the same country as the server.

Oh right. But what about for dual gun and what do KRs blame archery missing on?

Same boat, I can't use Dual Guns or Archery in KR because of how latency dependent they are and I don't live anywhere near South Korea.