They're here now. Probeably some temporary thing. They were invisible couple of hours after upload, I think (but I'm not sure).

I uploaded 5 versions of subtitle Blue Planet II s01e01 in Serbian languague, but I can't find them with search. When I go from here, they're not present. https://www.opensubtitles.org/en/ssearch/sublanguageid-scc/idmovie-560927 Also not listed here https://www.opensubtitles.org/en/search/sublanguag...

I have "uBlock Origin" adblocker and when it's turned on, there is no find subtitle button. Only after I disabled it, I managed to upload subtitle. Don't know if this is some error or intentionally work by admins so that people disable more ad blocker. Here is screenshot with enabled "...