Can’t seem to get rid of “Work” address label

This is driving me nuts – it’s such a minor problem (and I’m sure it’s something I’m doing wrong). I am trying to get rid of the label for the work address (using Tile Plus). Here is the entire short code I am using:

[connections enable_pagination=false order_by=’id|RANDOM’ show_image=false image=none image_fallback=none image_single_fallback=none image_single=none enable_search=false enable_category_select=false str_select_all=” enable_map=TRUE card_height=200 card_width=300 enable_category_by_root_parent=FALSE show_addresses=TRUE str_seperator=” str_image=” str_contact=” str_home_addr=”? str_school_addr=” str_work_addr=”? str_other_addr=” str_home_phone=” str_home_fax=” str_cell_phone=” str_work_phone=” str_work_fax=” str_personal_email=” str_work_email=”]

I have deleted the str_work_addr=” entirely and re-typed it by hand. No avail. Obviously, the other mods to get rid of the other labels are working, so I am kind of at a loss here.