I'm using PayPal sandbox to test eStore & License Manager. Seems that everything works fine but unfortunately I have NO information returned from [wp_eStore_display_transaction_result] shortcode, so most probably there is a PDT problem.
I folowed your guide (Instant Digital Product Delivery on A Thank You Page) many times and of course I enabled PDT in my PayPal account.
There is no errors in IPN & payment debug log files
I am also having a problem with the shopping cart [http://telestis.com/checkout/]. It is not emptying after PayPal purchase. I am being returned to the thank you page [http://telestis.com/thank-you/] but the product (downloadable or license) is still in the shopping cart.
I checked the PDT settings many times and I made many times ON/OFF
I turned ON and OFF the IPN feature at PayPal
The "Manage Customers Menu" shows normally the transaction and status is "paid" and the “notifications” in my Sandboc accounts show normally and correctly the transactions
I also made a fresh reisntallation of the eStore plugin
Could you please help or advise?