I created an application, and everything works through the companion. But when I compiled the apk and installed it on my phone, the application does not start completely. I see a blank screen and nothing else, as if Screen1 is completely empty.
I created the application from scratch using only the ready-made NavigationDrawer template. I also used the SimpleSqlite extension.
provide the aia file for debug
NavigationDrawer.aia (71.3 KB)

NavigationDrawer(1).aia (71.4 KB)
List variable is empty so the recycler view cant work with empty list u must load data before calling rycler view thats happning your screen 1 is blank
That’s surprising. Why does everything work through Companion, but not in the apk?
Capturing device logs might be helpful to find out the actual issue.
https://community.appinventor.mit.edu/t/capturing-device-logs-using-adb-logcat/11414?u=jewel