Attempting to configure an SSL Listener with nxlog-ce-3.21.2329 and getting ERROR invalid keyword: ListenAddr at /etc/nxlog/nxlog.d/dhcplogs.conf:10

Input portion of dhcplogs.conf file

<Input SSL>  Module               im_ssl  Port                 2048  ListenAddr           0.0.0.0  CAFile               %CERTDIR%/myca.pem  CertFile             %CERTDIR%/user-cert.pem  CertKeyFile          %CERTDIR%/user-key.pem  InputType            Binary</Input> 

I've initially had Port after ListenAddr but all it did was change which line the error was reported on.

Everything I've read and seen says it is supported and should work, does anyone have any ideas or pointers on why this isn't working?

This is on Ubuntu 22.04 LTS Server if that makes any difference.

TIA Tim