"Zombie" DHCP leases?

[pfsensory]

I have 2 entries in my DHCP lease list that I can't figure out. One is a duplicate of another entry (same device) that is listed as a static lease, except no IP address is listed (MAC address and device name are a duplicate of another entry in the DHCP lease (which is not assigned to a static lease).  The other entry is essentially blank - no IP address, no MAC address, no device name, start/end marked as "n/a", and lease type is static.

I can't figure out how to delete these 2 entries, or how they got there in the first place.  Any pointers?

[pfsensory]

(bump) Anyone?

[pfsensory]

Bumping this one more time to see if anyone has any help to offer

[cmb]

Not clear what you mean, could you post a screenshot?

[pfsensory]

Here is the screenshot:

(I have blocked out the last 3 pairs in the MAC address and the name of the iPhone - the other blanks are as they appear in the list in pfSense)