Problems viewing screens

How about friends from the Kodular community. I am new to this concept, I made an App where it has 2 screens, I don’t have any errors depending on the platform. The detail is that in simulation the apps run fine for me but once the APK is generated it only displays the first screen and then it closes. What could it be?
Thank you, I read your comments.

It would really help if you provided a screenshot your relevant blocks, so we can see what you are trying to do, and where the problem may be.

To get an image of your blocks, right click in the Blocks Editor and select “Download Blocks as Image”. You might want to use an image editor to crop etc. if required. Then post it here in the community.

To find out what’s going on use logcat

Taifun