I'm getting some weird results in the planetary Ship Build Menu. Old designs that I have since upgraded with better tech are showing up. So one of my designs, the Ferox III, is showing up twice. One of them is the old design, and the other is the new (current) design.

I've included a link to a screenshot that demonstrates this. You can see that Ferox III and Strucius I both appear twice.

To make this even stranger, the old designs do not appear when I go into Shipyard.