Device for abp keys disappears

Hello!
I installed loraserver3.0.1, lora-app-server3.0.0, lora-gateway-bridge3.0.1 on the stretch, configured device-profile to abp, added an abp device and configured Device address, Network Sessionh key and Application Session key.

After finishing the above, I backed up the entire SD card and burned it to another new SD card. After inserting the new SD card into the Raspberry Pi, I found that the Device address, Network Sessionh key and Application Session key were all empty. I think that after the SD card backup is restored, it should also have complete data.

Has anyone done the same thing and encountered the same problem?

It depends how you have configured Redis: https://redis.io/topics/persistence.