Facing issue with file upload for both drag and drop and select files using controls.Working fine in 7.4 version but after upgrading it to 8.4 the functionality is not working. Tried by replacing the controls "Filepath" and "pzMultiDragDropControlLocalised". Getting error like "Can't continue with file upload. " " is not a file." in upload file activity. Kindly provide the steps in resolving this issue.