This bug just showed up today.. For some reason the check boxes on the personal loot window are not showing up. I can only click Loot or Leave. Also it no longer automatically loots things that i have as Always in the loot filters. Tried camping all the way out and did not fix it.
Are all the check boxes gone? Or did it switch down to just Need / Greed? You may have turned off the loot filters, and in that case, you need to manually select things.
Is the "apply filters" box checked? Note the loot window on the right does not have it checked, and only has the "loot" and "leave" options.