It looks like we're already working with you via our support Live Chat, so we'll just continue the discussion there. Here was our reply in case anyone else happens across this thread:

We haven't had any other reports from users about IPN delays. However, the other day Amazon Web Services (AWS), where our services are hosted, did some maintenance that caused one of our log database servers to reboot, so its copy of our log database fell out of sync with the other server and locked that database to prevent any further discrepancy until we could take a look and bring it back into sync.

Our sysadmin was able to catch this issue pretty early and confirms our log database servers are now fully in sync and orders should be caught up.

If you're still seeing any Completed payments in PayPal that aren't listed in your E-junkie Transaction Log from Oct. 17th onward, that indicates we did not process that order yet, in this case most likely because the IPN for that payment couldn't get through to us. You can check for any such Failed IPNs and have PayPal retry them, at which point we should then be able to process that buyer's order as usual. The troubleshooting steps on this help page starting from Section C, Step 2 will walk you through how to do that: