On a Windows Server 2012 R2 I have set the ftp site with Built-In Authorization provider/ Basic Authentication, Default Domain:local and granted Read/Write access to the user that makes the connection (ravpd). The user also has Full permissions on all subdirectories under /apps (Application folder). Under camksrdo218 site Advance Settings, I have set Allow Reading Files While Uploading to True under File Handling.
I've attached Jpeg2FTPS powershell script and WinSCP.log for your perusal.
Reviewing file locks on the file with openfiles query, no lock shows up.
Thanks in advance for your attention.