Quote Originally Posted by Kobal2fr
But naval invasions do bork the AI a lot, and the worst thing is that whatever CA did to enable them, it's hardcoded and we can't touch it, neither to make them go away or just to tweak them into working more sensibly :/
You might try adding "force_invasion = false" to everything for your diplomacy mod, Kobal2fr. That may effectively neuter the naval invasions as they seem to be classified as "forced" (ie hardcoded) invasions.