This smells very like a problem I am having. I've been working on an integration app, and on Friday (25th September) it was connecting to the MYOB cloud perfectly OK. Today it is not, and I haven't changed anything in the app. There is a visible difference in the login/connection process - MYOB now prompts the user to set up a passkey. I don't recall seeing that before, but I click on the link to proceed without passkeys. I get the "Something went wrong" message, which has to be about the least informative error indication I've seen. I'm using the .NET SDK, and in my login window I process the NavigationComplete event on the webview control. No NavigationComplete event happens when the error appears, and it appears almost instantly when I click Connect. Something appears to have changed somewhere.
