Please attach complete log files.
Without complete logs, I can only guess: You are either connecting to different machines by mistake. Or the server is configured to accept public key only for external connections (unlikely).

I have this problem connecting to server. it works at home but not at work.

I have turned on logging on WinSCP on server at work
! 2020-07-02 20:16:30.758 Using username "sshuser".
. 2020-07-02 20:16:30.789 Server offered these authentication methods: keyboard-interactive,password
. 2020-07-02 20:16:30.789 Attempting keyboard-interactive authentication
. 2020-07-02 20:16:30.805 Prompt (keyboard interactive, "SSH server: Password authentication", <no instructions>, "Password: ")
. 2020-07-02 20:16:30.805 Using stored password.

I installed WinSCP at home and same section from logs
! 2020-07-02 20:21:36.099 Using username "sshuser".
. 2020-07-02 20:21:36.116 Server offered these authentication methods: publickey,keyboard-interactive,password
. 2020-07-02 20:21:36.116 Attempting keyboard-interactive authentication
. 2020-07-02 20:21:36.131 Prompt (keyboard interactive, "SSH server: Password authentication", <no instructions>, "Password: ")
. 2020-07-02 20:21:36.131 Using stored password.

So is this a error on server side or my side?
I did also notice these extra lines at work.. is something on network side blocking?

. 2020-07-03 09:55:09.788 Detected network event
. 2020-07-03 09:55:09.788 Enumerating network events for socket 1464
. 2020-07-03 09:55:09.788 Enumerated 1 network events making 1 cumulative events for socket 1464
. 2020-07-03 09:55:09.788 Handling network read event on socket 1464 with error 0
. 2020-07-03 09:55:09.788 Waiting for the server to continue with the initialization