Issue
Does the panel need to see a perimeter point faulted during the exit delay when arming All On to actually fully arm the system and not just Part Arm?
Solution
When the ARMING OPTIONS prompt Enable 'All On - No Exit ' feature is set to yes , the panel must see a perimeter point faulted during the exit delay in order to fully arm . If the panel does not see that , the panel will switch to PART ON to prevent a false alarm.