I've tried creating a simple messaging app using App Inventor's own tutorial with CloudDB. I also tried creating one using a tutorial with Firebase. In both cases, it works quite well when emulated in Companion; however, when generating the .apk file, the window constantly restarts, preventing me from interacting with it. Any ideas why this happens and how to fix it?
E tratado de crear un app de mensajería simple usando el tutorial del propio App Inventor con CloudDB. A su vez, intente crearla igualmente con un tutorial usando Firebase. en ambos casos resulta bastante bien al emular en Companion, sin embargo, al generar el .apk en ambos casos genera un reinicio constante de la ventana, impidiendo interactuar con ella. alguna idea de por que pasa y como solucionarlo?
Are you using a clock component and forgot to disable it in the designer?
It would really help if you provided a screenshot of 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.
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.
Messaging app (firebase).pdf (547.0 KB)
These are the blocks I´m using. The app use 3 screens and it is indicated its function in the archive
Before switching the screen, stop the clock
And next time before taking a screenshot switch the language ro English and upload your blocks directly into the community (no pdf)
Taifun
thanks for the help.
I will take what you said and I'll pay more attention next time.