Fix: Authorization Failed – Pinterest
Are you trying to log into your Pinterest app on iPhone or Android, or did you recently log off Pinterest and the app home screen is showing and Authorization Failed message continuously? The screen blinks on and off with this message and you can’t select login to the app or get to anything else on the screen.
Quitting the Pinterest app (swiping up on Pinterest from iPhone home screen) does not fix the Pinterest authorization failed message from appearing. In order to be able to login to Pinterest again, you must delete the Pinterest app and reinstall it.
This issue seems to be related to some type of corruption with the most recent version of Pinterest. Let us know if this worked for you.