Black screen first time I open application

Hello friends, I’ve uploaded my first game to google play, everything seems to work fine, has packaged and everything is correct, the problem is when I install the app, the first time I open it, only the first after installing it, the screen stays on black and you hear the sound, if I close the application and reopen it, it does not happen again, but I would like to solve this.
A greeting.

Here I leave the app in case you want to see the problem.

Did you manage to figure out the issue?