[Solved] Another "user 539 is not authorized" Error

Last night I went through the procedure of registering my account, creating a profile and even looked around at other users and shared projects.

I go to log in this morning and it prompts me for a user name. I enter the same one as last night and I get the 539 error message. I tried a different user name; same error.

The issue should solved now in version 1.0.23. The message is replaced by a more specific information.
Nevertheless, registering your Cubase 8.5 license at MySteinberg is (still) required.

Please also have a look at :
Thanks. If you still have trouble after registering your USB key and
Cubase 8.5 license at your MySteinberg account, please let us know !

The new version fixed it. Thanks.