Most 3000point - AIs cannot build Colony Ships with 0.16.0.1 !!
I wondered why the scores in my games looked that odd - so I started a test game (large classic midlife, everything visible, medium tech, added 19 AIs by hand and set them to 'computer controlled, use AI from design').
Of all those races from 8472 to Pandoran Alliance, only Abbidon, Eee, Ghizerea and Manai managed to colonize 1-2 planets on turn 20.
To my surprise, when I switched over all the AI players to human control, I found that those 15 races simply didn't have a Colony Ship design. With their current tech, I was oc. able to design some without problem. And the AIs build and used the ships quite eagerly...
Savegame attached ...
ps: Looks like I'm in beta-tester mode again ... 
PPS: Working races are -
Abbidon, Crysilonite, Eee, Ghizerea, Manai, Sonne Clan, Swarm Brood, Ticon Consortium, Tylmai, Vidrine.
Other than the Ghizrea (Ice, O2) all are gas giant inhabitants.
PPPS: .. things get even stranger:
The Ghizerea has both Gas Giant and Ice Colony Tech, but uses only the Gas Giant tech to build colony ships.
Effectivly, only GAS GIANT COLONY ships are working in this mod !! [/b]
I figured out whats gone wrong - just tested successfully:
The AI uses
Name := Atmospheric Probes
Description := Component designed to compel the AI to not design colony ships prematurely.
Strangly, all the "gas planet colonization" probes are marked with
Ability 1 Type := AI Tag 12
Ability 1 Descr := Can colonize a gas giant planet.
while the others use
Ability 1 Type := Ship Life Support <=replace: AI Tag 10
Ability 1 Descr := Can colonize a rock based planet.
and
Ability 1 Type := Ship Crew Quarters <=replace: AI Tag 11
Ability 1 Descr := Can colonize an ice based planet.
Default_AI_DesignCreation.txt uses:
Design Type := Colony (Gas)
Vehicle Type := Ship
Default Strategy := Don't Get Hurt
Size Minimum Tonnage := 330
Size Maximum Tonnage := 330
Num Must Have At Least 1 Ability := 1
Must Have Ability 1 := AI Tag 12
Design Type := Colony (Ice)
Vehicle Type := Ship
Default Strategy := Don't Get Hurt
Size Minimum Tonnage := 330
Size Maximum Tonnage := 330
Num Must Have At Least 1 Ability := 1
Must Have Ability 1 := AI Tag 11
Design Type := Colony (Rock)
Vehicle Type := Ship
Default Strategy := Don't Get Hurt
Size Minimum Tonnage := 330
Size Maximum Tonnage := 330
Num Must Have At Least 1 Ability := 1
Must Have Ability 1 := AI Tag 10
Abilities.txt and AI_Tags.txt do not accord with each other either. I guess there's some update needed for AI Tag 01-09 and some addition :
AI Tag 10 Colonize Rock
AI Tag 11 Colonize Ice
AI Tag 12 Colonize Gas