Whenever a put a lot of signs it just goes back to the home screen (like i pushed the home button)

Whenever a put a lot of signs it just goes back to the home screen (like i pushed the home button)

What I expected to happen was that it would just work

*What actually happened was: it went back to the home screen

Steps to Reproduce:
1. Put a lot of signs on each other.
2. Keep putting them on each other
3. The bug will make you go back to your homescreen