When I am trying to patrol, units going some where else as if someone else controlling my units. Can some one help!!

Hi, have you downloaded any mods recently? If so, disable them.

Do you set your unit(s) on attack mode + patrol? Sometimes attack mode is a little bit tricky.

Take into account patrol is an option where your unit(s) patrols an area between two points and if you mark your first point while moving on the map, it will go back to the place you were. Also, after winning a battle, your army will go back in patrol mode between the points you marked before.