Yes. I have reopened every window, including the game itself. Refreshed, changed design screens and back, made certain the new technology appears under Completed, made certain that I couldn't use SM mode to re-research it, or take it away and give it back, had the scientist who developed the technology develop another tech in the same field, and still the technology does not show up in the design menu. The same as the previous tech did not reflect in actual fuel production.