Thanks Bill, I've found the KB article below. We will start the upgrade
process for our locations. Thanks.
https://community.fortinet.com/t5/FortiGate/Technical-Tip-FortiGate-models-may-lose-part-of-their/ta-p/406302
Just wanted to add to this topic, but I've been seeing this issue quite
a bit. We have about 60 locations running 60F on 7.2.8. It looks to be
related to power outages and when they come back online, most
configuration changes are lost. Some times as...