Search

OneDrive's web and mobile search is currently unreliable, and the problem is often related to a file's specific metadata or indexing state, not the file name itself.

Your experiment with the copy proves this perfectly. The copy triggers a fresh indexing event, while the original file, for some reason, is "stuck" in a broken state in OneDrive's search index.

The fact that File Explorer on your laptop finds the file confirms it's not a problem with the file itself or with OneDrive syncing. The problem is with OneDrive's cloud-based search service on the website and mobile app .

It's a Known and Widespread Problem, Microsoft has acknowledged that the OneDrive online search service has been experiencing issues.

As a temporary workaround, copy the affected file (e.g., right-click → Copy, then Paste in the same folder). The copy will be searchable. Once Microsoft releases a permanent server-side fix, all original files should reappear in search automatically.

Bottom line, this is a Microsoft server-side bug, not your fault.

My answers are voluntary and without guarantee!

Hope this will help you.

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