https://imgur.com/a/NxMi9

 

When putting your mouse above aura selection, stance selection, class skill selection, spell level selection and maybe some other things, an empty tooltip box will be shown.

I found something:

When making the image above, I created a male character.

I went to the inn and hired a companion. Now I selected a female char and all those hooded people are suddenly female portraits.

You can still see the male portraits.

I created a male character in the inn and now all portraits are shown (male+female)

I have no idea why it did not work before.