Various Aggregate Graph Items are changed after the Graph_Device is rebooted accidently

[prottoy396]

Dear Community,

I was running the latest cacti without any issue since last 4 months. I have multiple aggregate graphs from some Cisco_L3 Devices. One of the cisco_L3 was rebooted last night (Power Outage). After that while the device become up again, I found all are the graphs showing data properly. But the Aggregate_Graph that are created from the rebooted device have changed the Items of the Aggregate.

Now I am getting wrong data in aggregates_graph only as the members/items of some aggregate have changed.

I have tried to reindex, What can be done to restore this? Or what caused the issue any idea please?

Thanks in advance.

Cacti V: 1.2.27