I can't delete an attachment from an issue in Jira

[Jason Ried]

I am currently unable to delete any attachment on a JIRA issue and would really appreciate some guidance.

I have done some research and can note the following:

• If I look in the default list view I see no attachment listed, but if I click on the issue then the right hand side view opens and there is a section for attachment. This section lists the attachments but has no icon (trash can) to edit/remove and if I hover over the attachment there is nothing either.
• If I click Edit on the issue then I see the new view but this only shows an attachment section to add more attachments. I can't see already added ones in this view and have no idea how to add this (I am admin).
• I have checked permissions and the entire team as well as me individually have permission to delete attachments.

I really have nowhere else to look, so any guidance would be appreciated.

[Ramiro P]

When you create a new user you can unmark the check box that indicates to notify to the user you are creating, but how they will know their login details if you don't notify them?