I love this game but... – Trainyard Review

This is a very entertaining game but there is a bug. Whenever I complete a level I have to quit and reopen the app to get to the main menu and do the next puzzle because of a large, empty, white box that appears in the top left corner. There is nothing on it to click or close it and I can't hit any buttons while it's up.
Review by PuddleBay on Trainyard.