v.3.0.0 (b259) With workstation crafting turned off in the sandbox it is still possible to craft workstations and use them to make anything for which you have the materials. The only difference is that no recipes are listed.
When was it fixed? My party did Grover High School on 31 December and we were unable to find all the zombies to complete the quest. There was an orange blob just above the roof.
I loot everything and it is day 5 in the forest and I have yet to see a mechanical part or a wrench. I could make a wrench if only I had some mechanical parts...