The Attachment Trigger is not firing for before insert and after insert events when attachments are added via the UI (Related to Tasks) in Winter 14 Sandbox, is this a bug? I've reviewed the known issues site and couldn't find anything similar. However, I did find others having issues with this same Trigger in the past (some reporting that the issue was resolved?). Can anyone shed some light on this?

Here is a quick example for before insert:

Apex Trigger:

trigger Attachment_Trigger on Attachment (before insert) {
    if(Trigger.isBefore)
    {
        if(Trigger.isInsert)
        {
            Attachment_BI_Add_Test.testChanges(Trigger.new);
        }
    }
}  

Apex Class:

public class Attachment_BI_Add_Test {
    
    public static void testChanges(Attachment[] newAttachments)
    {                
        for(Attachment a : newAttachments)
        { 
            a.name = 'test';
            a.Description = 'test';
        }
    } 
}

Other resources found with similar issues:

• http://corycowgill.blogspot.com/2010/12/salesforce-winter-10-attachment-trigger.html

• http://boards.developerforce.com/t5/Apex-Code-Development/Attachment-Trigger-Not-Firing/m-p/591659/highlight/false#M108460

• http://boards.developerforce.com/t5/Apex-Code-Development/Trigger-after-insert-an-Attachment/m-p/70211#M4073

I've also checked the docs for operations that don't invoke triggers however, attachments are not mentioned:

• http://www.salesforce.com/us/developer/docs/apexcode/index_Left.htm#StartTopic=Content/apex_triggers_ignoring_operations.htm