Thank you, Henry.
The solution you suggested worked.
I was getting stuck with Lumira 1.18 on the "loading module: 'Publish to HANA'" bit on the splash screen, but all I had to do is delete the C:\Users\Public\sapvi, and launch it again - and it worked!
This must have to do with licensing validation as I had an expired keycode and only after deleting that folder the launch process went past that splash screen and allowed me to enter a new keycode.
Regards,
Francisco