@TeamYouTube Ok, this problem has not gone away for the past 4-5 days. Whenever I try to filter videos via upload date, it won't change my results on either my laptop or phone logged in or out. Filtering by type/duration etc works fine but upload date will not work.
We're aware the search/sorting functions aren't working as expected – this is temporary and part of our efforts to better respond, review and remove graphic, violative content from YouTube. Thanks for your patience while we work through this.