Below is an error I just found while playing my new game I just started tonight after I upgraded to the most recent Beta patch. Below is a picture where I'm attempting to trade Dark Yor for Techs, however, the first tech on the menu is blank and I have no idea what it was.

This other picture shows the image after I had it listed in the trade menu as the tech icon with a blank tech.

This is a picture once I have the tech trying to trade the Arcean Empire for techs showing me now with this tech of nothing.

And finally this picture shows that the Arcean Empire is willing to give me 45bc for this blank tech.

Added after bonscott's post. Here is the picture you were looking for and you were correct.

I have a saved game from prior to this saved along with the debug if needed. thank you.