[Fyron]

Originally posted by Paul1980au:
That said more weak planets (outer empire low pops) tend to rebel a lot easier than core planets that are big in terms of population - i think weakly defended planets are a lot more likley to rebel and those that are unhappy (so cause economic and specific planetary intel attacks first make the pops unhappy then they will be easier attacked by PPP

Rebelling and PPP are two wholely separate affairs. PPP does not change the planet's happiness levels at all, and as far as I know is not dependant on happiness levels. Rebelling can happen naturally when you leave a planet at rioting happiness for a long enough period, but then it forms its own empire.

With PPP, don't planets have a 50/50 chance of joining you or forming their own empire? Are you seeing the PPPs fail outright, or maybe some of them are causing the planets to form their own empires? I am pretty sure it tells you if the planet formed its own empire, rather than reporting it as a failed project.