Hi Jaime,
After I unchecked the Enable Google Maps.
I still can see a request in event page, it call to https://maps.googleapis.com/maps/api/js?key=AIzaSyCOPhtnKQ4aC3K3fbVH7MnY6GV04X3WgVs&ver=4.9.1 .
You can use firefox to trace that behavior by yourself.
I hope we can fix that, it might be a bug. that request to google maps should not exist after I unchecked that option.
Thanks,
Martin