So I was using Dorna. At level one, I told her only to take levels in rogue, since I was a Paladin and didn't need overlap. And all through Chapter 1, she was a Rogue, getting up to Level 7. Then, when we shifted to Interlude, two things happened:

1) A lot of her equipment disappeared. She still had the armor I gave her, but the Ice Grinder hammer and the Gloves of the Rogue disappeared

2) She was now Rogue 4/Cleric 3.

Regarding #1, I've slipped into Debug Mode to spawn the missing items (I can't get it to spawn weapons though, strangely enough, but I can live with that)

But #2 is the big problem. I know how I can level down my main character through console commands. I had thought I'd level myself down to 1, reorder Dorna to focus on Rogue, and then level myself back up to 7--but when I level myself down, she stays the same.

Is there any way to level Dorna down again, or should I just use Deekin for all my Roguish needs?

I hadnt noticed this. I assume the npc is aiming for a prestige class, but i didnt realize it was that dramatic between chapters. I dont have your solution but a rouge/cleric could be decent....provided your not taking some rediculous penalty for multiclassing.