I hope this is a "me" issue.
I am running on two alamLinux8 VMs.
They are both in the same subnet and I can ssh in either directions.

My command looks like this:
mscp -n 4 [email protected]:/home/xxx/TEST .
The error looks like this:
mscp_connect: [ssh.c:208:ssh_init_session] authentication failed:

I have tried with and without the MSCP_SSH_AUTH_PASSWORD variable set
I never prompts me for a password either way.
I don't find anything in var log messages either.