Evaluation Rhino 6 for Windows- Not able to logging in

hi. i have installed rhino 6 on my laptop windows 10 on mid June (will be expired on 16 August) and was able to login at the beginning. but when I tried to login today (11 July) it gave back an error dialog “Value cannot be null. Parameter name: encryptedData”. Does anyone happen to have same problem or know how to fix?


@aj1, is this something you have seen?

Have you tried logging in to your Rhino account via http://accounts.rhino3d.com/ and checking the validity of the license? It may be that you got logged out of your Rhino account automatically and Rhino can’t log back in, or some other similar problem.