Date-time question / Minute step interval - by: Ben_V

I would like to ask for time using a date-time question (format: HH:MM) with only 00/15/30/45 options for minutes

I put "15" in the "Minute step interval" setting but it's not working neither with 2.06 LTS nor 2.54 versions

Is it a bug or am I missing something?

Thank you