In google index I can see my page indexed, but with fetching data error. In Google Search Console when I test page url (active version) I can see correct content. When I visit the page all is correct as well - no errors, all data fetched and displayed. However in google the page is indexed without data fetched (display fetching data error in description). When I check the content of indexed page in Google Search Console there is the fetching data error content (as display in google search).
While ago, when I tested the page in live Google Search Console, the first attempt showed server error (as in Google index), but every next call showed correct, full loaded, page. It makes me think, that there is some standby mode, but I not noticed it before - server was always ready to work immediately.
Point out that this is my own server with Ubuntu Server (not sure, i guess 19.XX) installed. Api (Strapi.io) is running in docker container. May there be default "standby" mode or something like that?