Screen Overlay Detected when installing new apps into Samsung KNOX

[Aaron12345678]

Hi all, I am experiencing "Screen Overlay Detected" error when I install new apps into Samsung KNOX, a secure virtual environment within the smartphone. I have disabled all apps that can appear on top as suggested by online resources but the error still pop up. Any solutions would be greatly appreciated.

I have solved this problem. trurns out I need to disable all apps that can appear on top within Samsung KNOX itself as well. LOL.