After successful installation of Mathematica 12.1 on Desktop and Laptop, I get a confusing message when I push the button "Open from Cloud..." in the startup window. 
Then I get the following message: 
This is how the cloud box looks 
I still have access to my cloud, but is there a possibility to improve the situation without confusing messages? This is happening on my Desktop as well as on my Laptop. Both computers are using Windows 10 with latest updates.