Outlook COM Add-in causing issues

Hello,

  Since our SEP migration to 14 MP2 from 12.6 our Point of Sale software can no longer create a new email message with an attachment. It should simply starta new email and put in a pdf file but this doesn't work when the Outlook COm add in is enabled. If I disabled the add in and close Outlook and try again it works perfectly. I've tried this on multiple client machines to prove out that its the Symantec add in that's causing this.

Error message when the Add-in is enabled:

Also to note, on my Windows 10 clients the Com Add-in says it's enabled, but yet when I go into the Outlook options it says the Symantec Add-in has caused Outlook to crash and disbaled it and it cannot be enabled?