I just been in the Lexcorp Tower Solo, the last adds before last boss. They didnt loose any health, then i got kicked/teleported out and landed in my base. Text just said "Zone unavailable" Wtf Daybreak? Edit: Not to forget that my SCOREBOARD is still active in my base!!!
This happened to me once a while back during the Lobo fight. I just put it down to a random glitch with connectivity.
It happens every now and then. An Error occurs causing the map to crash and the game sends you to your last location before that map. I have had the zone unavailable thing happen numerous times on the Metropolis over world map past years especially during "Tides of War"