Hello guys! I have a problem with the activation of the Corona 4. Whenever I open the max the Corona opens a dialog box to put the license again. Help me!!
Maybe this will help? https://coronarenderer.freshdesk.com/support/solutions/articles/12000015667
If not, please contact us here with your registered email address: https://coronarenderer.freshdesk.com/support/tickets/new
Do I need to uninstall the old version before installing 4.0?
No, there’s never a need to uninstall Corona 
Thank´s is working!!