Hello,
I'm using your plugin to allow users to upload an image with their orders, and for the most part it's working fine, but on the odd occasion (so far 2 out of 40 orders) the uploaded image is just an empty file (the file size is 0 bytes).
Are you able to shed any light on what is going on here and what I need to do to fix it?
I'm using the latest version of your plugin, WordPress and Woocommerce. My Apache version is 2.2.29, my PHP version is 5.4.38. And I'm only at 60-70% of my disk usage quota.