Not seen this before, maybe a v14 bug?
We are receiving blank email alerts whenever a user creates a knowledgebase record, and sets status to Published.
The emails are completely blank, and no subject.
There are no BPM definitions or email templates setup at all relating to knowledgebase, so it could be a bug with the standard notification on assignment emails, but even then these shouldn't send to you when the record is created by yourself?
Any ideas welcome.