Stock QR Reader

[sMsMaG]

Hi people. I'm trying to use the stock qr reader in stock camera and with the especified app called "Escaner" (in spanish) from MIUI. And any of this two apps can read any type of qr code. I tested in another app from Play Store and it works. My brother, who has Mi8 but not PRO, can read with stock camera and the other app, but I can't with my Mi 8 Pro. Do you test this feature in your Mi8PRO?

Thanks!