Hello, thank you
When starting the application, different things happen depending on whether a first attempt or second attempt.
One is: there is a black screen and after a while a message appears that "The application does not respond"
Another is: Everything normal appears, with the window where the map should be, but blank.
Now, after your comment, I downloaded a map offline and the download process seemed normal (I could not choose the area). When launching Maps, where the map should appear, this time I have appeared pois (points of interest) of "My Google Sites", but without a map, on a white background.
I have tried restarting Maps several times, with negative results.
I must mention that I have other map applications and the maps appear correctly.