We get e-mails from paypal with Transactionscode and price that a new user has paid.

In Admin-Cp >> Transactions all data of the user are recorded except of Txn-Id.

The Txn-Id always contains '0' and status is 'unpaid' even though paid!

We have to check the user's complaint every time and manually change it to 'paid'.

In our second domain (same version) it works perfectly.