That is super helpful. I think I had the same bug earlier this week. If so, I already had it logged and hopefully fixed it last night!
Right before this bug happened did you kill a fleet leader? If it's the same bug, it was caused by not properly cleaning up the relationship between a fleet leader and wingman ships when the fleet leader dies.
I also fixed the bug that allows you to resell the same weapon for infinite cash last night. No more cheating :P