USB thermal prints with same venderId and productId issue

[hoxer80]

I have 2 thermal prints connected via USB.
They are same model.

Then only first thermal print works.
Second print can not select with requestUsb() because they have same venderId and productId.

If I use different model, they work both.

Do you have any idea to solve when I have same models?

[bebo925]

I bet Chrome is confused. If you remove the device from Chrome and re-add it, I bet they will both work individually. Do you have to use both at the same time?

[hoxer80]

I bet Chrome is confused. If you remove the device from Chrome and re-add it, I bet they will both work individually. Do you have to use both at the same time?

Thank you for the quick answer!
I need to use both at the same time.

I have tried to remove both and re-add.
Unfortunately it does not work for me.

I have to add serialNumber to get work on ng-thermal-print.js at 1027.

class UsbDriver extends PrintDriver {
    constructor(vendorId, productId, serialNumber) {
        super();
        this.isConnected = new BehaviorSubject(false);
        this.vendorId = vendorId;
        this.productId = productId;
        this.serialNumber = serialNumber;

    }
    connect() {
        navigator.usb.getDevices().then(devices => {
            this.device = devices.find((device) => {
                return device.vendorId === this.vendorId && device.productId === this.productId && this.serialNumber == device.serialNumber;
            });
            return this.device.open();
        }) 
......