When I sign off of my Trainer Club account and swap to a Google account, then log again out of the Google account and try and log again into the Trainer Club account inside a brief period of time, I obtain an error message stating
"Unable to authenticate. Please try again."
This would not occur if a adequate period of time has handed since logging out of the account, and fixes itself after some time. However, it seems the time after which it fixes itself resets at any time when I attempt once more.
What is the precise period of time that has to move after my final logout for my subsequent Trainer Club login try and succeed?