Some observations about camps being normal:
It is not related to the number of types currently active. In my game I got 10 clans. 3 of them are Melee Open, 1 is Melee Hills, 1 is Cavalry Open and 4 is Naval. There is 6 of each types. The normal camp should have been Melee Open. Then I did a quick test game where I removed all but 1 Melee Open clan from the XML, which resulted in 4 normal clans on turn 10. I undid the removal of the clans and then reload the quicksave from turn 1, and I got outposts in the same spots, but this time with proper names. So this seems to confirm that there can only ever exists one of each clan, and once a clan type has been used up and the game decides to spawn one of that kind, it becomes a normal camp.
Also of note: All screenshots I have seen and from my own game, these normal camps have no units in them. So the bug affecting them is also affecting the unit spawning. They are very much broken.