Same here. I switched off KEA DHCP, enabled dnsmasq DHCP but set DNS to zero, so dnsmasq DHCP-only.
I get no dhcpv4 auto-fw rules, and dnsmasq is running without getting any packets.
EDIT: I accidently set the [no dhcp] ninterface option. Clearing it solved the issue...
EDIT2: No, the issue was like OP had: Interface ANY does NOT write the rules to the interfaces. Selecting the target interface (a single one in my case) fixed the issue, and 3 rules got written.
I get no dhcpv4 auto-fw rules, and dnsmasq is running without getting any packets.
EDIT: I accidently set the [no dhcp] ninterface option. Clearing it solved the issue...
EDIT2: No, the issue was like OP had: Interface ANY does NOT write the rules to the interfaces. Selecting the target interface (a single one in my case) fixed the issue, and 3 rules got written.