After upgrading my YTD to the new 4.5 version, I can't even paste 2 URLs to the downloader. It failed to download a complete video file even though the file was pretty small (less than 10 MB). I have to retry once or twice before I can get a complete file.
When I past more than one URL at a time, it gets even worse. These cases did not appear while using the former version of YTD Basic. Might my laptop be the problem or what is?