Recipe not added after reading Knights sword sketch

I don't now what caused it, but after buying and reading the sketch I bought from the blacksmith in Trosky Castle It was not in my recipe book. I did get the prompt asking me to view the recipe and chose not to view it.
p.s. does anyone know of another location for the sketch I didn't check my recipes for quite a bit after reading it so I'd rather not load a save.

The issue occurred on PC KCD2 1.1.1-11377-release_1_1