@Korina Oh, it's OK now. Nothing changed.
Isn't there some timeout (24h) for new stations?
And at https://stations.windy.com/pws/station/apikey/0 I can see new data, but

observationUpdated	"2020-09-09T06:10:54.290Z"

what is not true.

Hi all,
my station f05f3390 is not on the map. It's diy, sending data by curl POST json:

curl -X POST --connect-timeout 3 -H "Content-Type: application/json" -d '{"observations": [{"station":0, "ts":1599580852, "temp":20.23, "rh":50.5, "mbar":1029.33, "dewpoint":9.62}]}' https://stations.windy.com/pws/update/*api*key*
SUCCESS

At https://stations.windy.com/pws/station/apikey*/0 I can see data, but

observation	null
observationUpdated	"2020-09-08T06:10:31.975Z"

where time is quite old.
What I'm doing wrong? Please help me. Thanks