Thanks for the screenshot. I knew that some parts would come really close to overflowing on the schematics window (too much data at once after tacking on Fabrication details...), but I didn't find any that would definitely overflow.
It's a bit of a dilemma because I'd like to provide full item info once you have the schematic, but then there's also the extra Fab requirements, and the item info is not designed to be a scrollable window. The only solution would be to leave off some other section.
On the bright side at least the overflow didn't crash the game!
Edit: This might not happen to everyone, because at certain screen resolutions you can fit more info. But it must be compatible with the smallest possible window, as seen here.