I think this app is for verify VAT registration number, not for scan the Invoice’s QR.
Check this app Invoice QR reader unofficial
I know it’s not the official app but it works.
I have other Software Provider used this App and it show all QR Code item list and it is also mention it is comply with ZATCA.
Yes please it does show in unofficial app but there is no assurance you will not get the fine if there is site visit from their side.
I need your support to reply if you have downloaded the app and it read the QR Code otherwise we should ask @lubos to check the QR Creation file which I share earlier to help him find the error
Do you mean using the official app? If yes, I’m sorry I can’t check it now but I will do it tomorrow and sure, using the official app is more safe and confident.
Please try to join the providers of electronic billing programs in Saudi zakat and income, and fulfill their requirements, so that we can continue to use your wonderful program