Blank JDBC Connection turning up in Environments.

We are experiencing a little trouble with the JDBC connections, that we have set up for our environments.

We have 4 environments that our tests are run on, and we have two databases that we look in. So we set up two JDBC connections in the Databases screen. You can see those at the bottom of the screenshot.

This has worked well for a while, but today our tests failed on the GreenSpeak environment, and we found that there was an extra JDBC connection for the environment that did not have a driver or connection string set up. Since that connection was first, for GreenSpeak, in the settings-xml file, ReadyAPI always uses that one.

We are puzzled as to where that extra connection has been created from, as it is not shown in the Databases screen, and I can't delete it from the Environment screen.

Does anyone know where it comes from? .. so we can ensure that it does not show up again.

We have currently deleted the blank connections directly in the settings-file, but we don't want to be doing this on a regular basis.