Sigma Reqs

Sigma plugin won't work!

I beat the Polaris plot and just discovered that I can't start the Sigma mission string so I decided rather than restart the game I would make a plugin to allow me to start the missions. I got Mission Computer and copied the first Sigma mission into my plugin, then removed the availibility check so that I could always get it. I saved my plugin into the plugins folder and started up EVN. Unfortunetly I must have done something wrong because even when I set random to 100% it still won't give me the mission. This is my first plugin so I may have missed something really obvious, can anyone help me?

Change the planet it's available at. The original Earth (spöb 128) gets replaced by another one after many storylines. See my Sigma Fix plug-in for an example.