Warning unknow device

[DAVIZINH0]

Hello.
Im trying to backup my conbee2 before trying to migrate my network to a conbee3.

I launch the addon and export a file that seams good but apears a error in log

`[13:58:19] INFO: Running zigpy - backup on /dev/ttyACM0 to /config/tzb-zigpy-cli-tools/backup_conbee2_log_err.json

2024-03-15 13:58:19.780 d0f5a498-tzb-zigpy-cli-tools zigpy.application WARNING Unknown device AddrModeAddress(addr_mode=<AddrMode.NWK: 2>, address=0x8F4F)

2024-03-15 13:58:19.791 d0f5a498-tzb-zigpy-cli-tools zigpy.application WARNING Unknown device AddrModeAddress(addr_mode=<AddrMode.NWK: 2>, address=0x9129)

2024-03-15 13:58:19.804 d0f5a498-tzb-zigpy-cli-tools zigpy.application WARNING Unknown device AddrModeAddress(addr_mode=<AddrMode.NWK: 2>, address=0x9129)

[13:58:19] INFO: Action Complete`

What means this warning? its important?

thanks a lot!
-David-