It was a nav server problem of some kind. You can always check if a planets navigation is having problems or is still loading after a restart by visiting my website Index If the planet you are on has a status of good and your bot is still having problems, then it will be a problem within that area of the map not being able to be computed by BuddyWing navigation code when it analysis the mesh. Report your area where you are having problems and possibly a dump of your location would also be nice.
same problem, with a coutout off the logs posted here http://www.thebuddyforum.com/buddy-wing-forum/55412-mesh-server-down-4.html#post629180