The same thing happened in Pimski's March 8 stream, by the way - I don't know if that gives any more information. He notices and comments on the oddity in the stream, too. (The core reset is in March 8, noticing the schematics window is blank might happen in the March 9 one).
Edited to add: it's right around the 10:40 mark in this Pimsk1 stream:
https://www.twitch.tv/videos/236924813 (Salvaging extended late game)
Edited to further add: a commonality with both of our experiences is the CR was before a save, and noticing the odd Schematics window happened after starting up again. Could it be a bug with the save logic?
The schematics were obtained before using the core reset, which I found and used in S7. Most were through a Scanalyzer (Med. Storage Unit, Lrg. Storage Unit, some other utilities), at least one from a Terminal which I actually fabricated before the core reset (Exp. Shock Absorption System). I also fabricated 2x Quantum Capacitor before the CR.
This is on Linux under Wine, by the way, in case this is another wine-specific bug - I don't know if Pimski might run on Linux also?
I am attaching the scoresheet in case it has any other useful clues.