Advanced Search in self-hosted Gitlab doesn't search in database data

GitLab version - GitLab Enterprise Edition v17.11.2-ee OpenSearch version - 2.18.

GitLab Advanced Search only works for search in Code, Wiki and Commits. But it doesn't work with MRs, Projects, Users...

In OpenSearch dashboard i can see that, some indexes such as gitlab-production-users, gitlab-production-projects, gitlab-production-notes, gitlab-production-merge_requests, gitlab-production-issues have same small size (15.7kb). What could be the cause of the problem?