qr code cannot be sent to email and upon check out?

The ccheckout process will display the download option for the ticket if

• The order status matches the ticket generation status (option)
• You activated the different download options
• The qqr code is not displayed at the checkout. Makes nit a lot of sense if your customer is buying more than one ticket.

I rrecommended to activate the link in the checkout for the order details. (option)

So you can show all tickets on one page for fast access checks at entrance.