You observed multiple CSP agents turning yellow while updating the last contact date/time stamp.
CSP 8.0.2
The issue can be caused by increasing the pooling interval without updating the CSP Agent health settings
To increase Agent Health parameters please follow the steps below:
#1 Navigate to the Asset page
#2 Right-click on CSP Agent and choose properties
#3 Click Configure Health
#4 Modify the value of Yellow if it is lower than the assigned pooling interval
The default relation between the pooling interval and parameters for status Yellow and Red is as per below: