I love the loot filter interface it is easy to use and understand. But alas I am a mortal and I make mistakes and mistakes are not easy to find as soon as your filter grows beyond 5-7 rules.
Especially ordering/priority mistakes can be difficult to locate.
A feature that highlights the corresponding rule on the Loot Filter pane when hovering over an item, would be an immense help.
E.g. hold ‘X’ to show all items → if the Loot Filter pane is open → highlight the rule that would normally catch the item.
This would make it fast and easy to discover why the item you thought you had recolored or hidden is instead being caught by some other rule.