It's because you have "detailed view" with the sector names toggled on. It goes back to "simple view" with the locks and the flags when you refresh the map.New bug: or old? newly captured zones not showing the sword locked symbol unless you refresh the map
It's a little stupid.
If "detailed view" is toggled on when you leave the map, it goes back to "simple view" when you return to the map.
It should just stay where you left it.
It would be even better though, if the locks and the flags were toggled on all the time and the "detailed view" just added an extra layer with the sector names and other info.