I am running Catalina on an external drive for test purposes. An issue I have is trying to login with my iCloud AppleID, and login on App Store or Music with my secondary AppleID. It is not incorrect passwords being used, 100%.
My iCloud AppleID uses 2FA and my secondary AppleID is using 2-step verification.
After logging in for iCloud, I get the security request on my iPhone, but the window where I would enter the code is empty and times out with an “unknown error has occurred”. Logging in with the secondary AppleID brings up the window where I would choose a phone number for the code to be sent to, but empty as well until timeout. See attachment.
A 3rd AppleID, used for test purposes, logs in just fine. There is no 2 step setup on that account.
Has anyone run into this or have knowledge that this is “another” Catalina bug??