trying to install a new SSL cert, getting "The certificate key is invalid or may require a password" even though I am using the correct key file and it does not have a passphrase on it. Anyone see similar?

I 100% remember there being some ridiculous issue with the sequence you filled in the fields on the NS record, I think it always chucks that unless copy/pasting the key is the third field you fill or something - two minutes trial and error to rule it out anyway