This is more of an inconsistency than a bug, but when you’re creating a filter condition on affixes, and you click the Advanced Options box, the 2 boxes where you enter the number of affixes are different types of boxes:
“Tier of Individual Affixes Must Be” has a text box to type in a number
“Total Affix Tiers of” has a dropdown combo box to enter the number
Anyways, probably put this issue down at the very very very bottom of a bug fix todo list, but I just thought I’d let you know.