I only can have a few analog devices show the LED's latched when there are more than four devices in alarm at the same time. The panel will indicate and display all the alarms but the devices that were tripped do not.
Check to make sure there are no more than four devices in alarm at the same time. The Analog fire panel conserves current by only allowing up to four devices to latch its LED. Depending on the devices will limit the number LED's that will latch. The smoke detectors only draw 8mA in alarm and the call point draw 25 mA. The max amount of current draw at the same time is around 32mA.