Hi nk462777, Are you encountering an "Invalid Serial Number" error when launching CrazyTalk Animator v3.31 pipeline? I have transferred this issue to our technical support team. They will contact you via email within 48 hours and will help you check the serial number issue. You can also check the “Support” section on your account page as per following link. https://kb.reallusion.com/General/50108/How-to-engage-Support-Team We apologize for the inconvenience this may caused and look forward to your issue being resolved. Irving Reallusion