Hello,
I'm a big fan of BitShares all in all, but this is something that really has my blood boiling.
I now have total of 3 accounts in my control with the same problem - "tx failed, missing active authority." I'm effectively blocked out of using anything from my own accounts which if very nice. Wallets, brainkeys, etc. are safe and backed up, I remember passwords and all that, but I just can't use my accounts for pretty much anything. I have no idea what to do, I have tried anything I can think of.