Adding technolgy doesn't work right... little help?

[Escaflowne]

I have come up with some additional technologies to use in my games. I've written them up in the Components.txt file and they work normally when I place then at the tail end of the file. But if I try to insert them in the middle of the file, say put my new engines after Quantam III's, the entire tech tree gets messed up. When I go into the game my designs and ships have components that I didn't put on them or have not even researched. If I put the engine designs back at the end of the file everything reverts to normal.

I'm leaving a line between component entries so what am I missing? What makes it work only if it's at the end of the file?

Also have some new shields and construction bays and the same thing happens with them.