PSE 15 Organizer fails to start

Hello,

I'm running PSE 15 on a Mac OS Sierra laptop. I am currently evaluating it before purchasing the product.

After a couple of days of successfully running and importing some sample photos (around 20), I can't use the product any more. Organizer shows the spinning wheel when launched and there it stays.

I have tried reinstalling the product, creating a new catalog, using a different admin user, booting OS in safe mode, deleting the preferences files... I can't get it to work.

The editor works fine, though, it's just the Organizer that fails.

Any clue? Is the evaluation product different to the purchased one? If it's the same, I will certainly not purchase it.

Thanks

Oriol