GattConnectionEvent::PairingComplete always returns bond as None

[th3-cr34t0r]

I noticed that my device even the paired with the central, upon restart it would not connect automatically. I started debugging and noticed that GattConnectionEvent::PairingComplete always returns bond as None (meaning the bond information will not be stored in NvM). I tried with different central devices (windows pc, linux pc, android phone) but it would still be the same outcome. security_level returns encrypted tho.

Just to be clear, this was working as expected some time ago in my fw.

            GattConnectionEvent::PairingComplete {
                security_level,
                bond,
            } => {
                info!("[gatt] pairing complete: {:?}", security_level);
                if let Some(bond) = bond {
                    store_bonding_info(storage, &bond)
                        .await
                        .expect("[gatt] error storing bond info");
                    *bond_stored = true;
                    info!("[gatt] bond information stored");
                }
            }
...

[th3-cr34t0r]

So erasing the chip with nrfjprog --chiperase and flashing the bootloader again, fixed the issue. Now the nrf can receive the bond parameter in GattConnectionEvent::PairingComplete event.