Hiroshi Kubo shared this idea
Thanks for reporting the issue .
We are not able to reproduce the issue in house , Kindly provide following info to nail down this issue:
1)Kindly provide the machine details and the test file which you are saving in illustrator .
Kindly share the test file with us at ShareWithAI@adobe.com in a Zip file. Please mention the title of this issue as the subject of the mail.
Thanks & Regards