I've got this maxed, and so for the most part I can call in a new ship every turn after bringing in P2.
But every once in a while, I won't be able to do so, and the cool down for Call Reinforcement is set at 1.
Has anyone else had this problem? What exactly do you think it's related to? Chimaera's Ultimate Ability isn't supposed to affect the Call Reinforcement cool down, and ability block isn't supposed to affect Capital ships ... so I'm really not sure what's supposed to be going on here.