May be "0 bytes, 0.00KB/sec" a Filezilla bug?

[Claudiu]

Some of my users are getting issues with files not uploaded correctly. I'm not sure if they are only using Filezilla or this is also happening with other clients.
I also faced this issue while using Filezilla 3.40.

Feb 3 13:32:43 server1 pure-ftpd[1058]: (?@x.x.x.x) [INFO] userx is now logged in
Feb 3 13:32:47 server1 pure-ftpd[1058]: (userx@x.x.x.x) [INFO] TLS: Enabled TLSv1.3 with TLS_AES_256_GCM_SHA384, 256 secret bits cipher
Feb 3 13:33:29 server1 pure-ftpd[1058]: (userx@x.x.x.x) [INFO] TLS: Enabled TLSv1.3 with TLS_AES_256_GCM_SHA384, 256 secret bits cipher
Feb 3 13:33:29 server1 pure-ftpd[1058]: (userx@x.x.x.x) [NOTICE] /home/userx//index.html uploaded (0 bytes, 0.00KB/sec)

As a workaround I have completely disabled TLSv1.3 in ftp server until this bug is fixed. No problem with TLSv1.2.

[botg]

Known bug in pure-ftpd, please contact pure-ftpd support for assistance.