For about two months orders paid via Paypal haven’t been automatically creating invoices anymore. It worked fine for about half a year before that.
Date that it started seems random. No changes made around that time.
The payments are being processed correctly in Paypal and the order state does get changed to processing. The IPN is received as well and a comment is added:
Customer Notification Not Applicable
IPN “Completed”. Registered notification about captured amount of 145,00. Transaction ID: “xyz”.
The invoices can be created manually without errors.
Magento version is 1.4.2
Any help would be greatly appreciated.