[2021] Email & password don't match | More Multiplayers Issues

I haven't see other reports of the issue in your title here, very odd indeed. You are using the Paradox account associated with this forum name, or some other one perhaps?

Are there any unusual characters in your password, like spaces or accented characters? If so please try changing it to one that only uses standard Latin alphanumerics.

If that doesn't help I don't know what has caused this problem to you. Do you have access to any other computer , to see if this happens there too?  

Despite the unusual symptoms I think this must be another aspect of the endemic CK3 MP problems we are having.

If you have a VPN can you try connecting via that? Especially if it is set to the USA, that helps a lot of affected users apparently.  

We are not at all suggesting anyone buy a VPN, nor that this problem will go on forever without being addressed. As you say as a tech support rep I'm just trying to help you past the problem, if at all possible.

If it is not, I am sorry! I have great hopes that the next game patch will fix or at least help with the problem. Until then it looks like you won't be able to use MP, for which I apologise unreservedly!