Please attach a complete log file both from WinSCP and FileZilla, showing the upload.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
I am having trouble putting a file to a remote server that requires FTP with TLS/SSL Implicit encryption. If I use filezilla with the same setup everything works fine.
I can read and download files without issue, when I attempt to put a file i get a permission denied message.