Corrupted maps are NOT giving a +1 monster level

I'm trying to get the points 7 & 8 of the Boss Atlas, I already got the first 6 and I know that in order to do so, I need to kill a boss on a map with monster lvl 82.

That said, I go to a Corrupted area, select a map that it's corrupted, irradiated and has a boss, I'm using a corrupted lvl 16 waystone, and the BUG is that it's still showing as a lvl 81 monster map.

I haven't cleaned the corrupted nexus close to and I also haven't failed it, I didn't even tried it yet.

Am I doing something wrong here or is this a bug and the corrupted maps are not actually giving a +1 monster level ?

I am actually pretty disappointed with how they changed the way to achieve level 82 maps in mapping now. Before they changed things, i could consistently and reliably find or create level 82 maps in my atlas. Now? I have done everything in my power to try and find level 82 maps and they are rare as F*!K. XP is so much slower on 81 maps than 82 when trying to get to level 100, this is a bad change.

Unless i am missing something, is there a way to get the same number of level 82 maps in Dawn of the Hunt as the previous season?

+1