The Tribal Guardian Perk for the Barbarian is bugged. At level 7 you receive the benefits for level 8, and at level 8+ you receive the benefits for level 7. This means that at level 7 your clothing gets +5 armor bonus, and at level 8 your clothing gets +4 armor bonus. I've tried resetting and resting many times the bug doesn't correct.
After a reset it seems to be working as intended