Pencil tool starts with bounding box for Mac

The following fix works for Windows only. It does not work for MacOS 10.13.

Fix the boundary appearing on the first comment when you use the drawing tool https://helpx.adobe.com/acrobat/kb/boundary-appears-drawing-tool-comment.html

I Followed the above solution instruction for Mac, but it did not fix my problem. Still have the boundary box on the first comment stroke.

My laptop is MacBook Air MacOS 10.13.

It did not have the folder (/Library/Application Support/Adobe/Acrobat/DC/Preferences) to place the plist. However, I placed the plist in /Library/Application Support/Adobe/........../DC/Preferences.

I did cmd+Z (undo) and cmd+shift+A (de-select), but it is not a permanent fix.

What did I do wrong?
How to fix it?

Do you have a new fix for Reader DC on MacOS 10.13?

Regards,
Dave