Apologize for the issue that you are having with the product. Please send me your Adobe ID, location, and phone number over a private message. Click my picture and use the message button. We will get in touch with you for investigation.
Let us know the Operating system you are using and do you get any crash report ?
I have forwarded your request to the concerned team and they will check the issue. I will again send them a reminder for the same.
Can you please install Animate CC released just couple of days back and see if you are still running into this issue?