I have found when I add a map and set the custom extent of the map, then turn off all the Tools, I am no longer able to then change the extent of the map. Even after turning Tools back on, the map has to be totally deleted and added back to the page to update the extent. I've also noticed that when I add a map to experience builder, if I then go and make changes to the map, like adding additional layers, those additional layers to not get added to the data I can access, through the map, in all the other widgets. I had to delete the map out of my data and add it again and then all the new layers were available.