A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Hi @SP66,
Thank you for posting in this community.
Since we can't reproduce your situation, we need to narrow down the problem and try some things.
1.Ensure that your site collection resides in the correct content database in the test environment.
Navigate to Central Admin >> Application Management >> View All Site Collections. This will display the content database name of a particular site collection.
2.You can try to re-index this site collection again.
3.It is possible that something is wrong with your search service application. So, I suggest you re-configure the search service application.
Create and configure a Search service application in SharePoint Server.
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