Pairing issues

[tejado]

Hi,

I built the app and trying to get it working between two Android devices.
Sadly the pairing doesn't work. When I'm in the BLE HID app (keyboard section) and want to pair it with another device, I confirm the Bluetooth security code on both devices and after few seconds, I'm again ask to confirm a different security code. With a different device, I get the message, that pairing is in progress but never finish.

The device with BLE HID app supports advertising as peripheral. Tested with following functions which are all returning true (according to https://stackoverflow.com/a/28768599):

bluetoothAdapter.isMultipleAdvertisementSupported();
bluetoothAdapter.isOffloadedFilteringSupported();
bluetoothAdapter.isOffloadedScanBatchingSupported();

The tested host devices (brand new Galaxy S8, laptop and another cheap tablet) are also supporting BLE.
Normal pairing between the devices is working. Any clue here?

Regards
Tjado