I am getting a similar problem.
Logs read:
2019-10-25T13:05:55+00:00 INFO Instock Background Process started – Total: 1
2019-10-25T13:06:05+00:00 ERROR Failed to send Automatic Instock Mail for ID 14455 with [email protected]
2019-10-26T09:47:33+00:00 INFO Manual Instock Mail sent to [email protected] – 14455
When I send manually it is still tagged as FAILED but I assume the mail has been sent.
What was the problem causing the failure to send?
Thanks
Terry