AntiTraits : now what the heck is happening here ?

[Kobal2fr]

Buggy as hell, or I don't get how things should work ?

My understanding was that when a character had a given trait, and gained one point in it's anti-trait, then said trait gets -1, anti-trait 0, and that's it.

But I'm beginning to believe that when you gain 1 point in an anti-trait, the trait simply disappears altogether ! Which would explain why Assassins failing their missions go from "Experienced Assassin" to "Simpleton".

Case in point : start a campaign as Scotland. The prince has 2 StrategyDread, 2 BattleDread. I use him to capture York. Win, choose Occupy City, which gives 1 StrategyChivalry : all StrategyDread vanishes, instead of being reduced to 1.

So, are antitraits really meant to be "remove all levels of opposing traits when you gain this" ?
Because if that's the case... maaaan does there need to be a LOT more triggers and fixes to the traits files :/

And if they aren't, CA needs to be told FAST.

How were they used in RTW, does anyone know ?