The issue is resolved. I originally had the ike-user-type set for group-ike-id. Simple enough fix
gateway gw_wizard_dyn_vpn {
ike-policy ike_pol_wizard_dyn_vpn;
dynamic {
hostname "dynamicvpn@myworld.com";
connections-limit 10;
ike-user-type shared-ike-id;
Then in the client under Identities set the Type to "Fully Qualified Domain Name" with ID: "dynamicvpn@myworld.com"