Have you checked to see if the files are in the recently deleted folder? When you delete files from the Voice Memos app, they are first moved to a recently deleted folder before being fully deleted from your device. To check if this is the issue, follow these steps:
- Open Voice Memos app
- You should be in the "All Recordings" folder
- At the top left of your screen, you should see a blue back arrow. Tap that.
- Now you should be able to see the "Recently Deleted" folder.
- If there are items in the recently deleted folder, clic into the folder.
- At the top right corner, tap "Edit"
- Press "Delete All" at the bottom right
- When prompted, tap "Delete Forever"
IMPORTANT: Make sure that you want to delete everything that is in that folder. Once you tap "delete forever," there is no getting those files back.