Last version in multiplayer game with space exploration doesn't update any site unless you do it manually, Total Queued Chunks was at -10. I didn't find anything else, rollback to 1.5.10 fixed the issue.
Thank you @Stargateur for reporting this one! Seems like the site update script did not execute properly since I introduced the menu refresh option. I've got it figured out now and fixed in 1.6.2.
