I’m getting the same problem, how ever I can’t edit anything because I have Beaver Builder. When I go to the ‘EDIT’ section, I don’t see the same options as described in some of your replies.
I have managed to get the image sharp, but it is not the size I want (currently (1920×1959). I would like it to be half the size in the header.
Any suggestions?
https://www.rockenberry.com