Tag Cloud Sorting, Page, No Item on page.

Thanks for your patience in awaiting my reply. I had a look at the “Library” page and the “All” term is appearing first in the cloud. I hope that means you have found a solution to your first question.

Regarding your second question, a small change to your [mla_gallery] shortcode should get you the results you want. Simply change a-bad-term to all or whatever term you want to initially display:

[mla_gallery size=icon mla_caption='<a href={+filelink_url+}>{+caption+}</a>' post_parent=all post_mime_type=application/ orderby="title" attachment_category="{+template:({+request:term_slug+}|all)+}" link=file mla_nolink_text="Click a term to display the gallery."]

Give that a try and let me know if it works for you. I am marking this topic resolved, but please update it if you have problems or further questions regarding the above suggestion.