Arturs

Arturs, i think, i found the bug with the party tbh. 

Check the 1st picture. 

Red box = alone exp.
Yellow box = party exp.

BUT why does that happen? It happens because lvl + ML difference is more than 400 lvls.
When this happens if we remake party on N, same thing happens.
If we try to remake manually this happens, check 2nd picture.

3rd picture you can see what happens when the BIG guys (400+ lvl difference) teleports away.

So i think, that if you remove the level difference block, then the "bug" wont exist anymore.