UFT Issue

I am testing a windows based application and the test is to copy files to removable device like SD card, USB from a window drive and we should see a pop up(Dialog box)  which is application related and then we click OK button. So in my automation script I am able to copy and also get the popup window but unable to click on OK button.I tried to highlight the OK button and it works but unable to click on the 'OK' button.

I even tried record option but even it is not able to click on the Dialog box at all

Can someone suggest any solution to this issue? Thanks!!