I'm not sure I understand how the "Time To First Response" field works.
When I query for all Service Desk tickets created in the last 30 days in my project (project = nnn and created > -30d and issuetype not in (epic)) I get 382 hits, which is about right. In the first tickets, I see one with a green check and a value of 1h 34m.
I want the subset where the first response was within 24h, so I modify the query to add "and "Time to first response" <= 24h". I get 31 tickets. Way too low. Also, the ticket above isn't in the list.
What am I doing wrong?