anacondaq, thank you for answer.
OK, I describe problems more exactly.
Maps
Criatura Academy F1 (iz_ac01): 91, 44. I can't move to (91,45). Cells are marked as walkable (they are green-square highlighted under cursor).
I found a method to move the back part of the academy: if I pass between two tables, I can do it. But moving in this location seems as an "invisible labyrinth".
Criatura Academy F2 104,27 (right portal upstairs). I am entering the portal, appearing on the 2nd floor and can't move. If I left the game and login again, i appear in the room on the F2 near 66,168. And I can walking in the room, but can't left the room. In the thief trainer room is same situation: I can't left the room (can't go from line x=83 to line x =84). (iz_ac_02) 83, 138, for example - can't move 84, 138.
Prontara near 140,60, has an "invisible labyrinth" too. There is wide space between houses, cells seems walkable, but I can't pass through.
Monster Attack problems.
For example, Orc Warrior. THe file monster_db_conf says: Attack: [71, 33]. As I understand, it means attack between 71 and (71+33). Irowiki says 71-104, OK. Divine-Pride says 132 - 161 . Hmm. On EuRO damage from orcs was 100+. Iro differs from EuRo or irowiki lies?
UPD: irowiki lies, on iRO orcs inflict 100+dmg.
And when I set Attack to [71, 0],damage still has variance. With 8 vitdef my character receives ~50-70 dmg. It is strange.
Monster Behaviour.
Non-assist Hornets and non-aggressive Familiars. Maybe it is a bug, maybe feature of latest Korean patches, I don't know.