I noticed an important observation was missing from one of the nests that I installed and monitor in AZ (HRWA #1). It was occupied with 5 ~21 day old nestlings on 6/25/2020. Every time I try to enter the observation it rejects the date as invalid. Maybe because it won't let me enter previous year obs??? I don't understand how it disappeared but I KNOW I entered it along with a follow up visit to see if they had all fledged, which they did. How do I add those observations from 2020? I'd sure appreciate the help.