When you initialize the array variable to store the attachments for Outlook, you need to set the default value to the Word document you created. Based on your screen shots, the Word document is not an attachment in your list, which is why it is not included since the apply to each step is based on the attachments. You will need to add another Get file content action after you create the file from the template first before you can set the default value for the variable.
If the Word document generated from the template needs to be an attachment to the list item, you will need to add it to the list before you get the attachments.
**Didn't notice this had already been answered. :-)
