Demo reads yyyy-mm-dd field as date but will not auto launch time playback

I inputted a CSV data file with date/lat/lng/value fields on the website demo.

According to the user guide, I then set up a filter on the date field but no playback window appears. I can only individually choose one of the dates from the Values In box.

I changed the date field data from yyyy-mm-dd to sequential integers from 1 to 365 and re-inputted the date. Now, when I set up the filter on the date field, I get a scroll bar below it on the left hand panel. It does not look like the one in the user guide and it has no ability to playback - I need to manually move the scroller window.

Do I have the wrong date format for my data?

Reproduce the website demo with a CSV containing date/lat/lng/value fields, first using yyyy-mm-dd and then sequential integers, and compare the filter behavior with the user guide. Determine the supported date format and verify that valid data produces the documented playback control rather than only manual date selection.

Written by the indexing model from the issue text.