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You will find my address (if you log in) in my forum profile. Thanks.

Sure, where should I send the details?

May I get a test account on your server?

I've attached the WinSCP debug log file, along with the debug log from vsftpd.

Re: TLS 1.3 session reuse not working

Please post a complete log file.
Is there anything useful in the server-side log?

TLS 1.3 session reuse not working

Hi, I'm running an FTP server with vsftpd 3.0.4 and when TLS 1.3 is enabled and TLS session reuse is required for data connections, WinSCP isn't able to establish data connections after the first initial directory listing.

This is with the latest WinSCP 5.19.

Server asks for authentication with a client certificate.

Disconnected from server
Could not retrieve directory listing
SSL connection failed: session reuse required