Job changing with UA skills?

I anticipate the skills for UA will go poof upon switching classes because UAs were special circumstance characters to begin with.

But regular adventurers acquiring the skills through a quest were not.

My guess is that Beginner skills won't be touched by switching classes. Not the Cygnus skills and also not things like Soaring or Warring States Manifesto.
But I am not willing to risk losing my Soul Driver, near-useless as it is now, to find out for sure, so thank you to all those who volunteered to test.