As per your query, kindly follow the easy troubleshooting steps which might help to solve the issue.
Step1: Navigate to apps screen and tap on Secure Folder and enter your set unlock code. Step2: Tap on Add files. Step3: Select a data type to add files. For example, tap on Gallery. Step4: Select the image or images and tap on Done. Step5: Select Copy or Move. Example tap on Copy. Note: If you move this file to Secure Folder, it will be removed from its original folder. Step6: File copying to secure folder.
In case the issue still occurs, please register your concern in the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).
