Hi, thanks for posting here in Microsoft community, if you already checked the linked OneDrive account, verified files and photos, and tried unlinking/relinking but the issue still persists, here's what you can try.
First try to clear OneDrive credentials via Windows Credential Manager to fully reset account linkage, to do this simply open Credential Manager, press Windows + S, type Credential Manager, and open it then go to Windows Credentials, click the Windows Credentials tab then find OneDrive Entries, then look for entries like OneDrive Cached Credential or anything with OneDrive or MicrosoftAccount then Remove Credentials, click Remove for each OneDrive-related entry then restart OneDrive then open OneDrive again from the Start menu and sign in with the correct account.
Also, you can Uninstall and reinstall OneDrive to ensure no residual settings are causing confusion, check if multiple Microsoft accounts are cached in Windows and OneDrive, sometimes switching accounts doesn’t fully disconnect the previous one.
Also, to better understand, Are the incorrect files or photos showing up in the OneDrive web interface, the local folder, or both and are they from a different Microsoft account than expected?
I hope this helps you out, let me know
Chard