I have just leveled up a character and used the boon companion feat make my new companion the same level as my character level, and for some reason it added too many levels when I generated the companion.
I was a level 4 unchained rogue, just added 1 level of Hunter and the 'Boon Companion' feat which adds up to 4 levels to you companion (up to your character level) This should have generated a level 5 companion, but instead it generated a level 8 companion. I tried just de-leveling the companion, but it still treats it as though it were level 8 for companion advancement and attribute bonuses. One other thing I noticed, when the companion was generated it only showed me 2 levels to roll for hit points, I had to go back and manually adjust the HP on the summary screen.
Issue still occurs in 6.07.03.
Steps to reproduce:
Load the complete Pathfinder Society Complete Rules source
Create a new character
Set the race to human and add a level in Cleric
Choose Lawful Good alignment and Erastil as diety
Select the Community and Feather domains
Add cleric levels to 4th level to unlock animal companion
Add a wolf animal companion
Verify that the companion has two "levels"
Add cleric levels up to 7th level on the main character
Verify that the companion has four "levels"
Add the Boon Companion feat to the main character and select Animal Companion in the Book Companion Selection menu
Verify that the companion now has ten "levels" instead of the correct sixth
Note: this is the Boon Companion feat from Pathfinder Campaign Setting: Seeker of Secrets. The feat of the same name from Pathfinder Player Companion: Animal Archive appears to be working correctly.
However, when the Pathfinder Society Complete Rules source and Animal Archive source are loaded, only the Seeker of Secrets Boon Companion feat is visible.
Attach the character, makes life so much easier to verify.
Done! Manius Albus is the PC and Marek is the animal companion.
I've done a little more digging, and when the Animal Archive Boon Companion is no longer shadowed by the Seeker of Secrets version, it also misbehaves as above, when using the character I've uploaded.
For a fresh, non-PFS Pathfinder character, the Animal Archive version seems to work.
Tested and working in 6.07.04.
Thanks for the quick fix, Andrew!