Interpretation issues

Hi, folks - New community member with an emergency issue, any help appreciated.

I'm host. My control panel under Interpretation says "Original audio - interpretation off" and I don't know how to turn interpretation back "on", so that she can speak on the original audio channel, and the interpreters can do their thing on their channel.

In my original session this morning, my co-host/panelist's account somehow got designated an interpreter - she's not, she's the speaker. I couldn't find a way to delete that designation, because she wasn't listed on the interpreter setup panel.

I set up a new webinar session and had her log in on my personal account, in case the "interpreter" designation was somehow tied to her login... but I still have the problem. 

We ran a similar session two days ago without these problems. Was there an update or change to the interpreter functionality?

Lee