Uploads were not working on my site with the flash upload enabled in Quform, and I was only getting uploaded files as attachments in emails and not also uploaded to the server when the flash upload was disabled.
Having tested against the default theme and disabled all plugins, I have now identified that there is a clash with the Event Espresso Multi-Event Registration plugin. When I disable this plugin everything works fine.
I am wondering how I now address this conflict, and would be glad of some support.