So, in C# it is possible that when an NPR is generated on a planet, two (or more?) NPRs get generated instead. However, there doesn't seem to be anything preventing them from pissing each other off just by existing. NPRs aren't supposed to claim shared start systems or neighboring systems, but this may not be working right. I've generated two sets of paired NPRs in my current playthrough (and I've only run into 3 systems with non-original NPRs, so the odds of this seem high!). Both pairs went to war about 8 months after they spawned.
Anybody else encountering this? What do people think of this feature?