Map Center in Highend options doesn't work

I have setup Map in Highend options. After I entered two locations, I also wanted to add Map Center Latitude and Longitude, centered so, that the map would show maximum zoom with both locations visible on map.

The problem is: whatever Map Center Latitude and Longitudenumber I enter, Map position doesn’t change at all. Looks like Map Center data is ignored.

Please take a look at my screenshots I attached here.

BTW, your file attachments here don’t work properly. Attachment is possible only when editing.