I got the same: Circles correctly located at my location, but Station Marker south tip of South America
I solved it by following method:
pi@piaware:~$ sudo nano /var/www/html/dump978/config.js
Scrolled down, and removed quote marks "
"
around numeric values of SiteLat
and SiteLon
BEFORE EDITING
SiteShow = true; // true to show a center marker
SiteLat = "43.xxxx"
SiteLon = "-79.xxxx"
SiteName = "My Radar Site"; // tooltip of the marker
AFTER EDITING
SiteShow = true; // true to show a center marker
SiteLat = 43.xxxx
SiteLon = -79.xxxx
SiteName = "My Radar Site"; // tooltip of the marker
Now marker flew back from South Pole to Toronto.