So I created a super perceptive Orlan rogue being in 2nd Act on 5th lvl she has Per 21, Lore 7, Mechanics 2.
I have chosen to levelup my companion manually, so my Aloth on 5th lvl has Per 12, Mechanics 6.
As far as I planned - Orlan should notice every hidden object in game (incl. traps) and engineer Aloth should cope with every lock and trap.
BUT! My Orlan doesn't see traps (and I'm starting to doubt that she notice EVERY hidden object). Sometimes the trap she didn't see become unveiled by Aloth (with almost twice lower Perception). Needless to say, that sometimes (e.g. in Dyrford Ruins) a lot of traps stays undetected at all.
Also I've already completed the game with another rogue, being during all game at Per 16-17, Mechanics 8-10, who noticed a tons of traps and hidden objects, and successfully disarmed it...
The question is - do mechanics needed to detect traps? Either it is some sort of a bug with ultra high Perception?
I'm sorry, if I have chosen the wrong thread. And also I'm not a native English speaker.