Some insight onto the corrections even though he's initiating contact with play signals.
Ozzy does this. He will play bow at Indy, but when Indy responds, he corrects and gets snarky. He's afraid of losing control of the situation. Redirection works (I redirect Indy, not Ozzy, because Indy just gets confused, stiff legged and hackles, she doesn't go for him)
Redirecting Indy gives Ozzy the space he needs to realize he CAN still control the play, he gets over himself a little bit, and they can go back to playing pretty quickly. He will only play bitey face with Enzo, but he will wrestle and play chase and catch me if you can with Indy without and issue. It DID take a long time, because Indy plays like a bull in a china shop, complete with slamming into the other dog (Ozzy does not like) and she's learned to play with him, and to back off when he needs space.
Ozzy is a known dog aggressive dog. He's dog reactive, and won't hesitate to put holes in another dog in a fight. Zero bite inhibition with dogs. It took a long time to get him to where he can play, happily, with another dog. Now he needs maybe a week or so before he will initiate play with another dog, and then a few days before they can play without me playing "cop".
Once he plays chase or catch me if you can with another dog, I know they'll be fine together and everyone can chill out in the house without crating and rotating their time out. The only thing that will still start fights is something of HIGH HIGH value. There are no bitches in heat here anymore (and when Indy was in heat, she got away with bloody murder with him) and so only food or toys are of value. If a new food or toy comes in, I give it to Indy first. Steven doesn't think this is fair, but if I give it to Oz first, it will cause an altercation.
Once Ozzy has realized that the toy is going to get played with by EVERYONE, he has no issues sharing, or allowing another dog to walk by him while he has it.
Ozzy has been a difficult dog to raise and manage and he'll be EIGHT this year, but on the whole, he's improved about as far as I think he'll ever improve. He can be on the beach with other dogs going past and he'll ignore them. Even off leash. Or on leash. I do not allow meet and greets with him, on or off leash because if the dog tries to "one up" him, he's going to erupt with teeth flashing.
But with family dogs and dogs that are fosters or here for however long, he can learn to live peacefully with them now. When he was younger, it was a different story.
Jari probably needs to learn that Pen needs space, if Pen is being weird than he needs to walk away, and Pen needs to learn that Jari giving off calming signals means nothing is going to happen.