So I went to compose a pm, and two attachments from a previous topic I had made were already added to it for some reason. Went back to the forums then to compose again and the attachments were preadded again so I clicked remove and went ahead and sent the pm. Now the attachments are completely gone (links to them in the original topic are broken) which I suppose is how remove is meant to work. Why were the attachments preadded to a blank PM though?

The two attachments weren't the most recent ones I had added somewhere on the site, and before they were removed they were correctly listed on the Attachments page and were linked to in a topic. This is the original post they were in.