HUGE PROBLEM, PLEASE HELP!!

Not sure if this is the same problem but I had something similar. While placing the boardwalk tiles Side Show Bob showed up and my screen immediately took me to where SSB was walking around and the screen color seemed to change as well. I could not tap Bob nor go back to tiles.

I ended up exiting out of the game and then went back in and had no problems. Took me right back to tile placement. Hope this helps. Good luck.