I have a 24-move customized exploration ship.  It moves to the nearest unexplored location, then stops, even when it has moves left.  Seems similar to the auto-survey bug, where the survey ship stops at each anomaly even when it has moves left?

I have 4 fully upgraded Culture Starbases within 10 hexes of each other in someone else's area of influence.  The nearest is only 5 hexes away from one of my areas of influence.  They do not connect and have converted, at most, 3 hexes per side to my area.  Some of them don't give me any hexes.  Is the enemy just that culturally strong, or is there something wrong with the Culture Starbases?  I've researched all Culture-related techs, and most of my planets have the Tourist Haven and Outreach Center.

Am I confused over something or are these bugs?