Error when ssh_multiplexing is set to true

[paolooo]

I got an error when setting ssh_multiplexing is to true. See error below:

muxserver_listen: link mux listener /root/.ssh/[email protected]:22.Pilb0YoZJ1OxR28W => /root/.ssh/[email protected]:22.: Bad file descriptor

However, it is working fine when set('ssh_multiplexing', false);