I picked up some of my coins and tb's recently and carried them down to Cozumel and dumped them in a cache down there. They worked fine to this point indicating on the geocaching page that they had just traveled over 900 miles. Now, several of them have been retrieved and moved to caches in Alaska and Canada by different cachers and they are not showing any of the milage since Cozumel. Any ideas? I've even gone in and hit the recalculate distance button to no avail.

It's a reoccurring bug at Groundspeak. The last we heard was they knew about it but have no idea what is causing it. It's worse this time because recalculating mileage usually updated it and now it doesn't.

More here.