BitBox02: can't add device as signer, HWI gives "generic error"

[Stadicus]

When trying to add a BitBox02 hardware wallet as a signer, the device is recognized and I can unlock it, but then I get the following error message:

generic error. A keypath might be invalid. Supported keypaths are: m/49'/0'/<account'> for p2wpkh-p2sh; m/84'/0'/<account'> for p2wpkh; m/48'/0'/<account'>/2' for p2wsh multisig; account can be between 0' and 99'; For address keypaths, append /0/<address index> for a receive and /1/<change index> for a change address.

Seems related to #8

Full log:

#0x7f2b671e7fc0][ 2021-07-23T10:21:16.100 ] [ sendEvent ][ 118 ] 55
[#0x7f2b671e7fc0][ 2021-07-23T10:21:21.211 ] [ sendEvent ][ 118 ] 235
[#0x7f2b671e7fc0][ 2021-07-23T10:21:21.235 ] [ setAddSignerStep ][ 233 ] 0
2021-07-23 10:21:33.021 ( 342.395s) [        5AE46700]         hwiservice.cpp:88    INFO| Run hwi command '/tmp/.mount_Nunchu6NtvcI/appdir/bin/hwi enumerate' result: [{"type": "bitbox02", "path": "0003:0030:00", "model": "bitbox02_multi", "needs_pin_sent": false, "needs_passphrase_sent": false, "fingerprint": "b5496bff"}]
[#0x7f2b5ae46700][ 2021-07-23T10:21:33.021 ] [ GetDevices ][ 358 ] 1
[#0x7f2b671e7fc0][ 2021-07-23T10:21:33.024 ] [ slotFinishScanDevices ][ 277 ]
[#0x7f2b671e7fc0][ 2021-07-23T10:21:37.360 ] [ sendEvent ][ 118 ] 64
[#0x7f2b5ae46700][ 2021-07-23T10:21:37.360 ] [ slotStartCreateMasterSigner ][ 18 ] Test BB02 0
[#0x7f2b5ae46700][ 2021-07-23T10:21:37.361 ] [ setAddSignerStep ][ 233 ] 0
[#0x7f2b5ae46700][ 2021-07-23T10:21:37.361 ] [ nunchukCreateMasterSigner ][ 380 ] Test BB02 0
[#0x7f2b5ae46700][ 2021-07-23T10:21:37.361 ] [ nunchukCreateMasterSigner ][ 384 ] 0003:0030:00
2021-07-23 10:21:40.179 ( 349.554s) [        5AE46700]         hwiservice.cpp:88    INFO| Run hwi command '/tmp/.mount_Nunchu6NtvcI/appdir/bin/hwi enumerate' result: [{"type": "bitbox02", "path": "0003:0030:00", "model": "bitbox02_multi", "needs_pin_sent": false, "needs_passphrase_sent": false, "fingerprint": "b5496bff"}]
[#0x7f2b5ae46700][ 2021-07-23T10:21:40.180 ] [ GetDevices ][ 358 ] 1
[#0x7f2b5ae46700][ 2021-07-23T10:21:40.180 ] [ nunchukCreateMasterSigner ][ 386 ] QSharedPointer(0x7f2b50005d30)
[#0x7f2b5ae46700][ 2021-07-23T10:21:40.180 ] [ nunchukCreateMasterSigner ][ 389 ] Device:  QSharedPointer(0x3a98780)
[#0x7f2b5ae46700][ 2021-07-23T10:21:40.180 ] [ setAddSignerStep ][ 233 ] 1
[#0x7f2b5ae46700][ 2021-07-23T10:21:40.180 ] [ HealthCheckMasterSigner ][ 758 ] b5496bff qDiZSkZfoEDAmGTXXqqv
BitBox02 attestation check PASSED
2021-07-23 10:21:44.339 ( 353.714s) [        5AE46700]         hwiservice.cpp:88    INFO| Run hwi command '/tmp/.mount_Nunchu6NtvcI/appdir/bin/hwi -f b5496bff getxpub m/45'/0'/0'/1/0' result: {"error": "Input error: error code: 103, message: generic error. A keypath might be invalid. Supported keypaths are: m/49'/0'/<account'> for p2wpkh-p2sh; m/84'/0'/<account'> for p2wpkh; m/48'/0'/<account'>/2' for p2wsh multisig; account can be between 0' and 99'; For address keypaths, append /0/<address index> for a receive and /1/<change index> for a change address.", "code": -9}
[#0x7f2b5ae46700][ 2021-07-23T10:21:44.339 ] [ HealthCheckMasterSigner ][ 776 ] exception nunchuk::BaseException -4009 Input error: error code: 103, message: generic error. A keypath might be invalid. Supported keypaths are: m/49'/0'/<account'> for p2wpkh-p2sh; m/84'/0'/<account'> for p2wpkh; m/48'/0'/<account'>/2' for p2wsh multisig; account can be between 0' and 99'; For address keypaths, append /0/<address index> for a receive and /1/<change index> for a change address.
[#0x7f2b5ae46700][ 2021-07-23T10:21:44.339 ] [ nunchukHealthCheckMasterSigner ][ 350 ] b5496bff qDiZSkZfoEDAmGTXXqqv  m/45'/0'/0'/1/0
[#0x7f2b5ae46700][ 2021-07-23T10:21:44.339 ] [ slotStartCreateMasterSigner ][ 40 ] CREATE MASTER SIGNER FAIL
[#0x7f2b671e7fc0][ 2021-07-23T10:21:44.344 ] [ sendEvent ][ 118 ] 69
[#0x7f2b671e7fc0][ 2021-07-23T10:21:44.345 ] [ setAddSignerStep ][ 233 ] 0
[#0x7f2b671e7fc0][ 2021-07-23T10:21:44.350 ] [ slotFinishCreateMasterSigner ][ 267 ]

I tried two different BitBox02. I'm running the latest Nunchuk version on Ubuntu 20.04, all UDEV rules are installed. Other wallets like Sparrow that also use HWI work without issues.

Here some screenshots to illustrate the workflow: