Druid wildform has no + kb from agility? But you can buff it with oak bark. Look like bug, cos 16 kb in bearform too low (with 12 base kb without bark).
Barkskin per design (and per RAW) increases armour class to 16 if it is otherwise below it. It does not grant any dex bonus on top of that. I've not checked in the full release, but in early access it was working per design. It does of course mean that Barkskin isn't a massively useful spell outside of very specific use cases, especially at the cost of concentration, but that's a separate issue.
Your wildshape forms without Barkskin should, though, get armour class bonuses from dexterity, but the dexterity of the animal form not your druid.
I hope that answers your question, but if not I'd suggest posting a new thread in the Help, Tips & Tricks forum specifically on this topic. I know it has come up before in early access, but I'm happy with new threads being created for the release version.
"You may call it 'nonsense' if you like, but I've heard nonsense, compared with which that would be as sensible as a dictionary!"
