When an image in the list view of FileExplorer is dropped outside the dialog, a duplicate of this image is stuck to the cursor. After selecting another image, the ghost image remains and overlays the upload window. Follow the attached clip. Steps to reproduce: 1. Open FileExplorer in Thumbnails mode (or open Editor's Image Manager); 2. Select an image and start dragging it; 3. Drop it outside the dialog; 4. Observe the ghost image on the cursor; 5. Select another image; Result: The ghost image is not removed and overlays another dialogs.