Single file wyu extension is created in the destination folder. Other files are not copied.

My intention was to upload the latest debug files to the ftp folder. I did the below:Download Sites : Set the debug folder of my ApplicationUpload the updates: Set the FTP folder where the files from the debug folder to be uploaded.No error was shown while running the WyBuild application. However, instead of the files in the debug folder, I could see only one file with the with extension wyu. The files in the debug folder is not uploaded to the destination, ie. ftp folder. Please advice.