Dhcpd not offering reserved static IP returns unknown lease

typically when I reserve an IP for a MAC addr the device when booting up and requesting a dhcp address, will pick up the address I reserved. However recently the request looks like it comes in but dhcp instead offers an address from a range and says "unknown lease". Is there something missing or not configured correctly? I'm pretty sure I factory-reset the camera several times so it's not hard-coded in there. Any other suggestions?

config file:
/etc/dhcp/dhcpd.conf

}
## }}}
## {{{ IT::Devices (10.54.200.0/24)
subnet 10.54.200.0 netmask 255.255.255.0 {
  authoritative;
  option ntp-servers 10.54.25.110;
  option broadcast-address 10.54.200.255;
  option routers 10.54.200.1;
  pool {
    # WINS server address and info for microsoft win 3x,9x & NT
    option netbios-name-servers 10.54.25.75;
    option ntp-servers 10.54.25.110;
    option netbios-dd-server 10.54.25.75;
    option netbios-node-type 8;
    option domain-name-servers 10.54.25.110,10.54.25.110;
    range 10.54.200.35 10.54.200.40;
    #range dynamic-bootp 10.54.200.25 10.54.200.29;
    default-lease-time 345600;
    max-lease-time 518400;
    allow unknown clients;
  }

…

 host 040-cam-test {
    hardware ethernet 00:02:d1:01:10:73;
    fixed-address 10.54.200.60;
  }

tail -f /var/log/dhcpd/dhcpd.log | ccze -A | grep 10.54.200

Dec 10 11:39:31 DHCP01 dhcpd: DHCPOFFER on 10.54.200.60 to 00:02:d1:01:10:73 via 10.54.200.1
Dec 10 11:39:31 DHCP01 dhcpd: DHCPDISCOVER from 00:02:d1:01:10:73 (IP21x2-VVTK-0101c) via 10.54.200.1
Dec 10 11:39:31 DHCP01 dhcpd: DHCPREQUEST for 10.54.200.60 (10.54.25.75) from 00:02:d1:01:10:73 via 10.54.200.1
Dec 10 11:39:31 DHCP01 dhcpd: DHCPACK on 10.54.200.60 to 00:02:d1:01:10:73 via 10.54.200.1
Dec 10 11:39:31 DHCP01 dhcpd: DHCPREQUEST for 10.54.200.60 (10.54.25.75) from 00:02:d1:01:10:73 via 10.54.200.1: unknown lease 10.54.200.60.
Dec 10 11:39:32 DHCP01 dhcpd: DHCPOFFER on 10.54.200.37 to 00:02:d1:01:10:73 (IP21x2-VVTK-0101c) via 10.54.200.1

/var/lib/dhcp/dhcpd.leases
…

lease 10.54.200.37 {
  starts 4 2015/12/10 18:32:44;
  ends 4 2015/12/10 18:35:10;
  tstp 4 2015/12/10 18:35:10;
  cltt 4 2015/12/10 18:32:44;
  binding state free;
  hardware ethernet 00:02:d1:01:10:73;
  uid "\001\000\002\321\001\020s";
}