The phone cannot reconnect to the device

Hi: 
The device shows successful reconnection, but the mobile end is not connected.

And the connection information displayed on the device is (public), which is actually a phone connection rather than a PC connection.

This is source code And nrf54l15 log. Can you help me?

ble_hid.rar
[23:38:54.251]收←◆*** Booting nRF Connect SDK v3.1.1-e2a97fe2578a ***
*** Using Zephyr OS v4.1.99-ff8f0c579eeb ***
Starting BLE HID Mouse application
Bluetooth initialized
No bonds found, advertising without accept list
Advertising successfully started

[23:39:17.431]收←◆Connected to: 66:23:89:BB:CD:86 (random)

[23:39:19.409]收←◆Security changed: 66:23:89:BB:CD:86 (random) level 2

[23:39:19.531]收←◆Local addr: C6:5A:2E:CA:85:D7 (random)
Peer identity addr: 1C:8B:EF:A5:5C:76 (public)
Pairing complete: 1C:8B:EF:A5:5C:76 (public) bonded=1

[23:39:27.029]收←◆Disconnected (reason 19)
Added peer to accept list
Advertising with accept list (1 devices)
Advertising successfully started

[23:39:38.738]收←◆Connected to: 1C:8B:EF:A5:5C:76 (public)

[23:39:39.028]收←◆Security changed: 1C:8B:EF:A5:5C:76 (public) level 2

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