@Joseph1550
"I am flexilble" is a search option for guests. Your listing will show up in search results if dates are available for booking which are matching the search options of the guest, including "i am flexible. But the position of a listing in the search results can be different for an "i am flexible" search then for a "fixed dates" search. Sometimes you need to zoom in more on the map.
You can test the conditions under with your listing will show up (at top: add dates, then choose: i am flexible) here:
https://www.airbnb.com/s/homes?host_id=224378483&map_toggle=true
I tested it for flexible: "a week in januari" and it shows up.