TypeError: Cannot read property 'length' of undefined in smp.js

[susy11]

Hello,

I'm running the latest version of the bleno package and when I'm trying to swtich from a paried phone to another phone i get this error:

/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/crypto.js:60
var output = new Buffer(input.length);
^

TypeError: Cannot read property 'length' of undefined
at swap (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/crypto.js:60:33)
at e (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/crypto.js:37:9)
at Object.c1 (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/crypto.js:22:9)
at Smp.handlePairingRandom (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/smp.js:130:12)
at Smp.onAclStreamData (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/smp.js:58:10)
at AclStream.emit (events.js:327:22)
at AclStream.push (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/acl-stream.js:26:10)
at BlenoBindings.onAclDataPkt (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/bindings.js:194:21)
at Hci.emit (events.js:315:20)
at Hci.onSocketData (/home/pi/NodeBLETest/node_modules/@abandonware/bleno/lib/hci-socket/hci.js:588:14)

Is there a way to bypass the pairing itself or the code that causes this issue?

The code runs on an RPi 4

Thanks!