Actually lost a game because of this... nukes going every which way, doing everything except hitting their target. Here we see a nuke spinning around at the center of a planet. (The motion is not shown, but it kept spinning and spinning.)
Please posts bugs in the support forum, in the sticky thread that has the build number. Don't forget to post the lobby ID so they can take a look at the specific game. This specific bug (rotatiing around core) was reported in the last build, by me and somebody else.