Since upgrading from version 6.0.2 to the most current version, I am having random failed PayPal payment reports. Sometimes even from the same session from the same person. They will make a purchase and it goes through via PayPal just fine and the emails are sent properly.
Then, they buy another file (eShop is used for digital downloads only on this site) two minutes later and PayPal reports a failed payment. The money goes into the PayPal account, but the actual purchase is moved into "Failed" category under Orders. And of course, no emails are sent.
This is a totally random occurance with no rhyme or reason and only started happening when I upgraded to 6.2.17. (6.2.15 would do this on ALL purchases).
At this point, I am about to once again revert back to version 6.0.2 as that seems to be the only 6.0.x release that is stable. I have have had nothing but problems since going to versions 6.1.x.
WP Version: 3.4.2
eShop Version: 6.2.17
Other plugins installed:
Google XML Sitemaps
Here is one report example: (names and emails have been changed)
Paypal has reported an invalid payment.
item_number1: CINE-LGT : xVid format
payment_date: 18:32:29 Oct 17, 2012 PDT
item_name1: Let\\\\\\ s Give a Tea
Also, if someone purchases more than one file and tries to download them all at once in a ZIP file, it will just return a blank page.
Looking at the code there is no action specified for the form:
<form method="post" action="" class="eshop dlproduct">
For now, I have just have hidden the "Download All" button. However, this is something that might need to be addressed.