I assigned Farah Tran & Scarlet Garner to this SimpleATV's crew compartment in the designer, and launched it. In-world, (in "flight",) I was surprisd to find the crew compartment contains Yuri G. instead of Farah Tran. It works all right, just the name is different. Incidentally, I have no Yuri G. amongst my astronauts, available or assigned. On saving the "flight" and returning to the designer, I see Farah Tran and Scarlet Garner are shown as being on a mission. (There are no other flights.) It's as if Farah Tran and Yuri G. are the same person.
I'm reporting this from mobile, but on my PC a couple of days ago, I launched a rocket with Elliot something and another named drood, but in-flight, both droods are named Unassigned. It's rather disappointing. This was in version 1.3. In this case, I guess there may have been a name conflict with another vessel in flight; I don't know.
The PC save pertaining to this is attached to another (unrelated) bug:
https://www.simplerockets.com/Feedback/View/6td2Z7/Maneuver-orientation-changes-when-burn-starts