See these discussions on missing citations in Google Scholar:

https://www.researchgate.net/post/Does_anybody_know_how_we_can_add_the_missing_citations_to_our_profile_in_Google_Scholar/1

https://www.researchgate.net/post/Is_there_any_to_add_the_missing_citations_in_Google_Scholar_Profile/1

https://www.researchgate.net/post/How-to-add-missing-citations-on-Google-Scholar/1

https://www.researchgate.net/post/How_can_i_add_missing_citation_to_my_Google_Scholar_profile/1

https://www.researchgate.net/post/The_article_published_in_a_scientific_journal_within_the_Scopes_container_Why_didnt_a_new_citation_appear_in_Google_Scholar/1

https://www.researchgate.net/post/Could_you_please_explain_my_inquiry_on_citations/1

https://www.researchgate.net/post/What_to_do_if_a_citation_is_not_included_in_Google_Scholar/1

https://www.researchgate.net/post/Why_some_article_citations_is_not_seen_in_the_google_scholar/1

https://www.researchgate.net/post/Do_you_know_why_some_citations_are_not_index_in_the_google_scholar_profile_but_the_same_citation_index_in_the_other_data_bases_such_as_scopus/1

I think that Google Scholar is lately missing many citations. Especially since the middle of September. I do not know what is wrong with them...perhaps they are updating something. In my case, they have big issues in finding some RSC and Wiley citations. These citations already appear in Scopus, ResearchGate and in the journal page.

Yes, at least 6 citations in the last week do not appear in the SG profile.

Same proplem

Same problem here as well