pppoe no connection - [attempt to domain_add(netgraph) after domainfinalize]

[TheBob]

Hi there,

i do want to switch from pfsense to opnsense and playing around with my test-system.
Initial Installation works fine. After setting up my vlan-pppoe connection and interface no connection can be established.

During Bootup i get the following Error on my wan-Interface:

attempt to domain_add(netgraph) after domainfinalize


Any idea how to fix that?
Thanks in Advance,

Bob