So I recently managed to put a few Pokemon into several gyms the other night, and over the past few days, they have returned. However, some have returned with Pokecoins, and some haven't.
So far the only difference I have managed to figure out is the message that accompanies the Pokemon. The ones that return with Pokecoins say
Arcanine has fought hard and returned.
And the ones that don't say
Kingler was knocked out of the Gym.
What is the difference?