Android app stuck in loop

eM Client mobile issue:
Open app
Swipe down to refresh…

Jumps to screen:
Signed in to Google as…

Shows the following options:
Manage account
Add account
Sign out

Tap the back arrow:
Get blank page with banner showing “X
Click X close the above page and finally goes to inbox.

After few seconds, the process repeats.
X out a 2nd time and will stay a little longer but then repeats the process again.

One UI version 6.0
Android version 14

After a few rounds of the above process, everything settles down and works.