Alec,
Remember that the transaction at paypal completed correctly.
I can’t help because I can’t see how you are determining this in the log above. More important it looks like the IPN return notification is not being either sent by paypal or received by OJS.
Please see this response. I think they are related. Is it possible that IPN now requires that a return URL is in the configuration on the paypal side?
The paypal requirement is for TLS 1.2 and HTTP1.1. There is no spec that I have seen specing the curl version which for us is 7.19.7
Alec, we have the same issue. When we go to check this setting in paypal, it reports that the IPN is disabled. When we check the “enable” box and save, the site complains and wants a URL. So the questions are a) are you really using IPN for event notification or b) are you use using the IPN gateway and reading all status during the transaction?
Lastly, are you using IPN notification to trigger sending emails to pay-per-view customers?
Thanks, radjr