When I click the View Ticket in WooCom under Orders. In summary under actions part. 

1. It is really really slow to create ticket. It took 3 min to create. I checked server resources and server is fine and was not under load.

2. when it finally does create PDF, it is missing QR code. Where QR code is supposed to be says "Image Not Found or Type Missing". I am using Template Style 5. I also tried style 6 with same results.

This is what Style 6 shows as it also is missing images