Struggling with pihole-FTL

Help
40

I can get it to work/bind/listen with little effort:

pi@noads:~ $ sudo -u pihole pihole-FTL -- -v
Dnsmasq version pi-hole-2.80  Copyright (c) 2000-2018 Simon Kelley

Maybe the interfaces are reported a bit late for pihole-FTL to bind to their IP's.
I believe below directive could solve instead of/replacing the bind-interfaces directive:

bind-dynamic

pi@noads:~ $ man dnsmasq
[..]
       --bind-dynamic
              Enable  a network mode which is a hybrid between --bind-
              interfaces and the default. Dnsmasq binds the address of
              individual   interfaces,   allowing   multiple   dnsmasq
              instances, but if new interfaces or addresses appear, it
              automatically  listens  on those (subject to any access-
              control configuration). This makes  dynamically  created
              interfaces  work  in the same way as the default. Imple‐
              menting this  option  requires  non-standard  networking
              APIs  and  it  is  only  available under Linux. On other
              platforms it falls-back to --bind-interfaces mode.
[..]

What file are you editing to apply these settings ?

Posting netstat and systemctl status output at certain stages would help ?
Maybe rogue settings (halfway down posting mine):