Since upgrading to 4.7.6 we have two CiviMail bulk emails with the status "Running" that have not actually been sent. In the scheduled jobs log there is this message:
Finished execution of Send Scheduled Mailings with result: Failure, Error message: DB Error: syntax error
Parameters parsed (and passed to API method): a:1:{s:7:"version";i:3;}
Full message: Finished execution of Send Scheduled Mailings with result: Failure, Error message: DB Error: syntax error
In ConfigAndLog The full error is shown here, but I'm struggling to locate the actual fault / corrective action. Any help greatfully received.