This is the bug everyone is running into right now, where when you complete a level, it crashes back to the main restaurant map instead of registering your progress. This is an *extremely annoying* bug that makes me avoid watching videos, which also stalls my progress due to the lack of gold.
Workaround: Don't watch videos until right before the daily reset (here it's 4 PM Pacific, at least until the spring time change); send emails to support in-game and they may send you gold.
I'm stuck for the next few hours because I decided on a lark to test if it still happens if you watch all the videos and then kill the app. Spoiler: This does not work.