Seeing this means that the plugin does not support long-pressing the QR code to open it. Your users should take a screenshot of the QR code and open it that way in WeChat.
The Stripe integration used by our plugin only supports payments from verified WeChat Pay accounts. Generally, these are accounts owned by Chinese citizens or citizens with a national ID from a country where WeChat officially operates.
Unverified WeChat users will receive an error message when attempting to make a payment. This is the error message they will see:
The Merchant has completed unusual activity. Currently unable to complete payment by scanning a QR code in a photo.
This means the customer attempted to import the payment QR code into WeChat as a screenshot, which is not supported. Customers must complete checkout by physically scanning the QR code with the camera function in the WeChat app.