Unable to connect via SFTP

Hello newly installed Hestia server using default installation Ubuntu 20.04 on Oracle (Ampere). I’m unable to connect via Filezilla (SFTP) using the admin user or additional user I setup. Password is for sure correct. Using the IP address of the server and port 22. I get these messages in Filezilla:

Error: Could not connect to server
Status: Waiting to retry…
Status: Connecting to 140.238.144.233…
Response: fzSftp started, protocol_version=11
Command: open [email protected] 22
Status: Using username admin.
Error: Could not connect to server

I have ensured SSH is set to bash for admin and the additional user as well as in the default packages.
Fail2ban is stopped
Port 22 is opened on the server
I also tried this on a completely different server platform (AWS Lightsail) with a fresh install and experienced the same issue.

auth.log shows:
May 7 18:58:01 hcp CRON[1606381]: pam_unix(cron:session): session opened for user admin by (uid=0)
May 7 18:58:01 hcp sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
May 7 18:58:01 hcp sudo: pam_unix(sudo:session): session closed for user root
May 7 18:58:01 hcp CRON[1606381]: pam_unix(cron:session): session closed for user admin

Would appreciate any suggestions. Thanks

Additional user as in user_xxxx will not work

Also please provide more information from the log files

According this log only attempt to login from root was made

I’ve tried both the admin username as well as the additional user account that I setup called tailwind.
Here is the full log file: Dropbox - auth.log - Simplify your life
I can connect via putty to the server using root as username and the key.

May  7 18:16:42 hcp sshd[1600218]: Accepted publickey for admin from 127.0.0.1 port 53558 ssh2: RSA SHA256:/N51mETpgSSJPazNd22TRfIM28NVMKdcc3prPi6Hh40

You are able to connect via SFTP via file manager.

For tailwind_trench it is currently not possible to use sftp.

May  1 03:57:57 hcp useradd[877390]: new user: name=tailwind_trench, UID=1003, GID=1003, home=/home/tailwind/web/sign.trenchfitness.com, shell=/usr/sbin/nologin, from=none
May  1 03:57:57 hcp useradd[877390]: add 'tailwind_trench' to group 'hestia-users'
May  1 03:57:57 hcp useradd[877390]: add 'tailwind_trench' to shadow group 'hestia-users'
May  1 03:57:57 hcp chpasswd[877399]: pam_unix(chpasswd:chauthtok): password changed for tailwind_trench

I also see a lot:

May 7 18:10:04 hcp sshd[1597867]: Connection closed by authenticating user tailwind xxxxx port 57700 [preauth]
May 7 18:10:26 hcp sshd[1597869]: Connection closed by authenticating user admin xxxxx port 57729 [preauth]
May 7 18:10:32 hcp sshd[1597871]: Connection closed by authenticating user admin xxxxx port 57736 [preauth]

As SFTP and SSH are using the same protocol there should be no reason why it doesn’t work. It might be a client issue