Thread:Extension talk:Maps/Incorrect display of locations on map

Hi, I have a Wiki that receives a large number of case studies pertaining to environment protection. I have the map functionality included and the places where case studies are conducted are reflected on the map. The user can input coordinates for this location. However recently a user had updated a case study conducted along the Czech Republic-German border. However the map fails to display the correct number of locations in this region. All the other locations are displayed perfectly. Please help.