The problem began immediately after I migrated to a Microsoft account. The account migration was successful, but the error message appears once each time I try to log in using the launcher on my Mac (after entering my username and password).
Unfortunately, the Minecraft Launcher Troubleshooting FAQ contains only Windows-specific solutions – nothing for Mac.
doctoradam2
I'm having the same or a similar problem.
The problem began immediately after I migrated to a Microsoft account. The account migration was successful, but the error message appears once each time I try to log in using the launcher on my Mac (after entering my username and password).
Unfortunately, the Minecraft Launcher Troubleshooting FAQ contains only Windows-specific solutions – nothing for Mac.