Not able to attach a onedrive link from within Outlook 2016

jcasqueiro Old post, but I was just having this same problem with Outlook 365.  I went into the Outlook...Options...Attachment Options.  My setting was "Ask me how I want to attach item every time" but it was not working, rather it always attached copies.  I changed the setting to "Always share them as links".  I then successfully created a test email to verify that it was creating the attachments as links.  I then returned to Outlook...Options...Attachment Options and reselected "Ask me how I want to attach item every time".  I created a second test email with an attachment and it prompted me for link vs. attachment.  We will see if it holds, but working correctly for now.  Hopefully this helps someone in the same situation.