The core map software was updated to the latest version last night. In this update, an effort was in place to remove as much trademarked assets as possible from the base code. With that said, the images used to display pokemon on the map was updated in preparation for future icon changes. If you have map access and are noticing strange icons on your map, please try going into you respective browser’s settings and deleting/removing temporary files. This should clear up any issues you may be seeing with the maps.