Microsoft is investigating a known OneDrive issue that is causing searches to appear blank for some users or return no results even when searching for files they know they’ve already uploaded.

In a support document updated this week, the company shared that this bug impacts Windows, Android, iOS, and web users.

“Some OneDrive personal account users may notice that search results appear blank or don’t return files they know exist. While the files are still present and accessible, they don’t appear in search results,” Microsoft explains in a support document published this week.