Jail and ZeroTier: "unable to configure virtual network port: cannot find /dev node"

Hi everyone,
I'm new here and new to Freenas.
I'm having troubles setting up a ZeroTier network in a jail.
I can join the network but I'm unable to ping the jail.
If I run "zerotier-one -d" I get this:

"ERROR: unable to configure virtual network port: cannot find /dev node for newly created tap device"

This happens only inside the jail, the same command on the main host runs smoothly.

If I try to list the networks with "zerotier-cli listnetworks" I get a PORT_ERROR as status.

Output...

Jail and ZeroTier: "unable to configure virtual network port: cannot find /dev node"