I had this problem in 2.0.7, upgraded to 2.0.12 and I still have the same problem…
- I upload a product file only and all is fine.
- I add a preview file and now the customer can only download the preview file in their My Account area.
- I re-upload the product file and the customer can now download the correct file in their My Account area. However, now the full product file shows under the Files tab on the product page… free for anyone to download without paying!
I posted a bug report, but wondering if others encountered it as well?