Friend visits, drop in event currency

I have noticed for awhile now that when doing friend visits during an event where you have to tap "x" (tourists, ghosts, fans), I don't receive the event currency on the very last tap. For example today when I visited and had 3 friend taps left, the last one did not give me my 5 cuffs. This has been happening for approximately two years. Has anyone else noticed or is it just a glitch in my game?