Per GM request, I was asked to post in here.
With the new thief update, I see I have 335 ranks of warding. But when I try to teach a warding class, I get:
You realize that you do not have the in-depth knowledge that is required to teach this skill.
And when I listen to a warding class, I get neither warding nor scholarship EXP. Similar to other classes I can gain no skill in. But I should be able to gain skill in Warding now.

Thanks!