Never noticed this. I changed coordinates of an event significantly, I'll bet about 3/8 of a mile to another section of a Park. Although the Google Maps link showed the updated coordinates immediately, the thumbnail map on the cache page (which can be clicked to enlarge as a pop up) took a good two days to update, unless I'm crazy. We don't have any so called cron jobs that run any later than once a day, but that's what happened to me with the map. Consider this an FYI, if it ever comes up.