Here is a tough little bug to catch in 1.3.3.
Anyone occasionally get orders using product options and the select box and getting customer orders with the options blank? It has happened here a handful of times. We have reproduced this on the site at checkout ourselves but only once, add the item to the cart again and then fine. We thought it might have been characters in the fields but confirmed it was not. Unless the software just chokes once in a while.
Most likely that it’s a bug that has since been fixed after 1.3.3.
You’re 5 versions behind us but that never hurt anyone 