I use Outlook, version 14.0.4760.1000 (32 bit) and have no plans to change versions.

I received a calendar invite from a colleague today. After removing some stuff from the invite, like the .ics file, when I clicked the save button, I was told: This item contains attachments that are potentially unsafe. You may not be able to view these attachments after you close the item…

There may have been a PDF file in the email with the invite and the view of the appointment, in the weekly calendar view, shows a paper clip icon (meaning there is something attached). However, when I looked at the item, I see not attachments. Is there any way to remove the attachment, assuming there is one?