Andor's Trail

I bought back then in charwood the "dual wield" skill. Now, when I was about to level up the skill I noticed that my stats wasn't affect, I leveled up and the stats changed as if I leveld up to the first level of the skill, and I can't level up because it is already leveled up to the second level, but the stats still act like I'm on the first level.

I'm sorry, but I have no idea what you're trying to convey.
Can you please provide screenshots of your skills and your stats and your level?

On level 0 of "dual wield":
-25% of the offhand weapon qualities(AC and AD for this context)
-attack cost is the sum of the 2 weapons
-the lower of both demage modifier is being used

On level 1 of the skill you get:
-50% of the offhand weapon qualities
-attack cost is the higher attack cost + half of the lower attack cost
-the average of both demage modifiers is being used

On level 2 you get:
-100% of the offhand weapon qualities
-attack cost equals the higher one between the two
-the higher demage modifier is being used

My stats w/o any equipment:
AC: 100
AD: 4

With both of the weapons:
Attack cost: 9
AC: 137
AD: 8-19

Main hand: yagatan
Attack cost: 5
AC: 19
AD: 4-12

Offhand: flagstone pride
Attack cost: 4
AC: 21
AD: 1-6

I have level 1 in this skill which I bought in charwood. It has no impact over the attack cost.
I have no idea what is it doing with the AC, 85.7% of the offhand qualities on this aspect.
On the AD aspect: 4 + 4-12 + 0-3, which is 50% of the offhand qualities.
If I switch the hand the AC is 138 and the AD is 7-16.

When I upgraded to level 2:
Attack cost: 7
AC: 151
AD: 10-23

If I switch it stays the same, which completely confuses me.
I think there is a problem in the execution of the skill.

I promise you there's no problem with the execution of this skill. The skill's been around for 9 or 10 years. You're missing something. Can you please show me screenshots?

well a day later after upgrading again it has different numbers, idk what changed
thanks tho!