HI All,
This is the reply that I had back from my ticket…
Tech Specialist Rachiomyst here to help. Hope you’re doing well today. Sorry to hear about this issue you’re running into. We did start to receive reports in regards to this and it seems to be linked to the authentication process with players that have an authenticator on their account. The only thing that has worked for this is removing the authenticator, but this is not an ideal solution. For now we recommend launching the game via the Battle.net app while we investigate what triggered this change.
Thank you all for your comments 