Thanks for reaching out to us for your concerns.
I would request you to kindly update to the latest available version of Adobe Acrobat DC using “Check for updates”
Also please send a screen recording video of the issue that you are facing to us at email@example.com
An error occurred while saving the commentAnonymous commented
I'm running the latest Acrobat version on Windows 10 x64 and am experiencing that very issue, too.