Placed engineer's workshop

Hi, I download the new sperimetal version and I find something strange:
I have 2 blacksmith one level 6 and one level 2.
I tried to forge the wrench but unfortunately I can’t because I need a placed Engineer’ workshop. My question is who can craft this workshop?
I saw all the other profession and none of this can do it …
Maybe is because I loaded and old save file ?

A post was merged into an existing topic: Can’t craft the Engineer’s Wrench