Hello,
If you create a new company via Companies, Copy, there will be no display name filled in. When you logon to the new company, you will have to go to Company Information page. Here you will find CRONUS company. You will have to change it there so that the display name will be filled in when looking again at the Company Information page.
I did not yet see that this changes again to the original name of the CRONUS company (which is the source company) after you do the modifications like this.
Hope it helps.