Black screen while entering/exiting fortune race

When you enter or leave fortune race, sometimes it makes your screen stay black and you must close the app and restart it to continue with the app. I realized it usually happens when you are pressing around too much when entering/leaving. Here's a ss of the black screen

[support10]

Hi,FSXerath
Could you give us your device info,including OS version.Thank you.
Teresa
The Lost Tower Team

iPhone 4, IOS 7.0.4

This doesn't happen all the time. Just sometimes it stays black and I have to restart the app to make it work again.

The black screen happens when I click ENTER button two times, before entering fortune race.

The black screen happens when I click ENTER button two times, before entering fortune race.

Yeah same . Thanks I just knew that when I was pressing a lot it would happen.

[support10]

Hello,dear players
When the network isn't very good,the black screen will happen if we click ENTER button many times.We will fix it ASAP.At the same time,you can improve your network to reduce the frequency of encountering this problem.Thank you for your support.
Teresa
The Lost Tower Team