As I have seen this problem hasn't been solved and it also makes Eco Lifestyle unplayable for me - at least I cannot play the main parts of the expansion pack anymore. It's interesting that it worked for around a week or two without a problem, my Sims were even able to build a lot of stuff. But now it seems like I can't just use ecofriendly parts anymore. It's a really frustrating problem.
What I have tried:
+ resetsim
+ putting the fabricator somewhere else
+ rebuying the fabricator
+ and not long ago I reset the whole game because of some struggles with ecofriendly, but then I found out that a lot of people had crashes with the November update - the crashing problem doesn't exist anymore
I don't have any mods or CC installed. Since I have got the Eco pack, the game often lags when being in or shortly after leaving building mode.
I hope it is okay that I made a video: https://vimeo.com/user127727855/review/482495422/03e9ab10ef
