Originally Posted by
Weasel
Sometimes when I beat a Defence Leader they are shown as still active once I close the fight result screen. This is obviously impossible since I just defeated them, but there's an easy fix to the problem. Switch screens within the event window or exit back to the hood or map you're viewing and then reopen the event. Never fails, DL did actually go down and what must be a display issue/bug/crappy programming had caused the battle list to not update.
OP is probably seeing a version of this same thing. Just be patient, and when things don't look right you should always force a server call (bank $10, withdraw $0, refresh rivals list, refresh battle leaderboard, and so on) before proceeding with anything else.