Started a new game (PotD, auto-levelling turned on).

 

Went directly to the lady to hire a new party of custom adventurers.

 

Typed "addexperiencetolevel 9" to level myself up so i COULD hire new adventurers.

 

Hired a group of four level 8 adventurers.

 

Typed "Addexperiencetolevel 9" to console them all up to my level.

 

Went through and started manually levelling them up; noticed an error that they could not actually use appropriate skills for their level (for example, the single class priest could not access level 5 priest spells).

 

Reloaded a save and realized that the hirelings had all hired at 3rd level rather than 1st; so they "missed" some level ups (the "first" click on the golden plus sign giving them a level up from 3 to 4, instead of from 1 to 2 or 2 to 3); so they were stuck permanently behind in terms of skills/abilities.

 

 

Same here; I actually just wanted to make a thread for this.

 

This bug only affects unlocked power levels (for me), by the way.

Hit points are what they should be, I get the expected amount of proficiencies and skill points as well.

Even ability points are unaffected, so my mercenaries get 2 points for unlocking a new power level at the appropriate level ups. They just don't actually unlock the new power level.