Hi @lilyvalley,
Please check the document library where the files were uploaded.
- Click the gear icon in the upper-right corner and select “Library Settings.”
- Navigate to “Advanced Settings.”
- Confirm that “Allow items from this document library to appear in search results?” is set to Yes.
- Once adjusted, the library should be indexed during the next scheduled crawl.
And there are several reasons will cause the issue, such as the file is checked out or is waiting for approval. you could refer to the following steps to troubleshooting
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