Has any one else lost their vision?
I can see just fine 
lol
Seriously though, I cannot check at the moment but I did see that some people are missing characters in a few threads but those seemed to revolve around the DDQ required character, One guy was missing Punisher yesterday and another is missing Blade today.
Mine disappeared after i recruited him by buying him a new roster slot. Sent a ticket and got him back few days later.
I have to come to use my vision character but it has also disappeared, I earned mine by doing well in events, which also I have notice a couple more have gone too