HighEnd Map custom pin does not hold position on zoom

I am using the High End Theme, Full-width map, and map settings from High-End options. If I use a custom pin (png image), the pin shifts to the west on zoom “-” and to the east on zoom “+”. At the extremes the pin location is many miles away from where it should be. The default pin location works as it should on zoom, and stays at the proper Longitude and latitude no matter the zoom setting.