@Karin1795
The "i am flexible" option is an option for guests to have more listings shown in search results, not matching the exact dates. It is not to be set in the listing. If your listing does not show up, you probably need to zoom in more on the map, as the amount of results has increased and your listing is not on the initial list.
I searched with "flexible" and your listing does show up, allthough indeed sometimes have to zoom in on the map.
You can test under wihch conditions your listing is showiing up here:
https://www.airbnb.com/s/homes?host_id=9495123&map_toggle=true