DHCP Reservation Bug

[almac]

I just upgraded version to OPNsense 21.1.9_1-amd64 yesterday.  This morning I set a DHCP IP Address Lease to static so a device on my network would always have the same IP Address. I did click "Apply" after saving the changes.  It is a new WiFi device I was just configuring for my home automation system.  I unplugged the device to move it to it's final location.  A little while later my daughter came home and her iPhone was assigned the same IP Address I had just reserved for the home automation device.  The attached file is a couple of screenshots showing the leases, and the reservation.