Yes, the newest version of Chaos Phoenix works with Corona 9 for 3ds Max, and is included with the Corona Premium subscription plan.
Important Notice: Due to a high volume of inquiries, our response times may be delayed. We apologize for this, and appreciate your patience as our team works diligently to address your concerns. Thank you for your understanding! If you are experiencing licensing issues related to the Enscape 4.1 release, please visit our detailed FAQ document here