You open the app.
Everything looks normal.
You tap the option to switch accounts.
The screen freezes for a split second.
Then the app disappears.
No error message.
No warning.
Just a sudden exit.
This issue usually happens at the exact moment the app tries to replace one account session with another.
The app starts clearing the old user data.
At the same time, it tries to load the new account.
If that transition fails, the app has nothing stable to continue with.
So instead of showing an error, it shuts down.
This is common in apps that sync profiles, settings, or cloud data across accounts.
One account works perfectly.
The moment you switch, the app collapses.
From the outside, it looks like a random crash.
In reality, the app fails during the account handoff.
The exit happens because the session state is incomplete.
If the app always closes right when you change accounts, the problem is not the login.
It’s the transition between accounts.