Unable to test custom app on development store, or even to install it (part 2 of 3)

[continues on Unable to test custom app on development store, or even to install it (part 2 of 3)
Tap Develop Apps and get this:

Note that the desired app, sd31p DOES show. I select that in the list, I get this which SHOWS THE APP AS INSTALLED.

From here, I am able to uninstall and reinstall the app, supposedly, but nothing changes.
However, it’s not REALLY installed. I can close “Settings” and it does not show in the left-menu apps

Following the left-menu Apps (right arrow) shows that it is not listed as an installed app

Looking at apps and sales channel settings, it is NOT listed as an installed app

[continues on Unable to test custom app on development store, or even to install it (part 3 of 3)]

Hey @den232 I’m taking a look here and I will reply on your first post here once I have reviewed:

Next time, it may be better to use the reply option to add more context instead of opening multiple threads.