Apple iOS Files App Won’t Delete
I used the Files app to upload 4 large (3 and 4 GB) files to Microsoft OneDrive. They are sensitive/confidential files that must now be deleted. But Files won’t let me. If I select the files, “Delete” is ghosted along the bottom right.
I remember the upload took a long time, of course, and I don’t think it displayed the thumbnail or was accessible for a few days.
In Microsoft’s OneDrive iOS app I was able to delete them. But going back to Apple Files, they’re still there. They’re accessible too.
I’ve tried switching the OneDrive “Location” but it’s still there. Anyone know of a way to completely disconnect the Location/Service?
Or how to clear out the Files app ‘cache’?
I’ve also tried uninstalling the Apple Files app, downloading and reinstalling. Still there. Bad situation with potentially severe consequence if files fall into wrong hands.
Situation is the same on both iPad 7th Gen and iPhone 6S.
Any help would be greatly appreciate.
Thank you.

