Battle not ending after it was won

[Marknadamsjr]

I 5-starred a base in MP. But the game did not close the battlefield screen after all units were defeated. The clock stayed stuck at 51 seconds remaining. Would not let me drop more units or tactics. Stayed this way for several minutes until I force-closed the game. When I reopened it, the win had been recorded, and defeated troops were gone, but surviving troops still in the troop tray. I was able to take video of this, but the attachment is too big for here.