Hi!
I have published the app to see if it can really works for the users.
When I click 'Play' here, it works, I can login and I am navigated to the next screen.

But when I shared it with my colleague to test it, nothing happened when they tried to login. 😭
At first I thought that maybe the database for username and password is too big so I changed the criteria to just use their email, if the email match with the user, they can login. But it still doesn't work.
Not sure if this related, but my PowerApps has connected to my personal SharePoint which can't be shared because it contains personal data of lots of people.
If anyone know how to make it works, please help.
Thank youuuuu.