I've tried repeatedly and I cannot replicate any of your results. No matter what I search for, the date filter works. What were you searching for? Please share your full queries and have screenshots that capture the URL as well.
edit: You also say this occurs in the "huge majority" of the times you search. You give one cropped screenshot that does not even show your own query. As a journalist, please specify whether you intended for "huge majority" to be taken literally or figuratively. How many searches have you run and how many have one of these bugs?
edit: You also say this occurs in the "huge majority" of the times you search. You give one cropped screenshot that does not even show your own query. As a journalist, please specify whether you intended for "huge majority" to be taken literally or figuratively. How many searches have you run and how many have one of these bugs?