I didn't notice it till now, but 9.0 has a recipe bug. If you put a dark tank in a crafting bench/window it tries to give you a blood extractor, this is even with more then one tank in it. I thought it was borked on my end so I deleted the config, still messed up. Reverted back to 8.9 and it was fixed, so went back to 9.0 and it came back.

Ah, I already know what I did wrong, it's a simple fix.
Thanks for reporting this, expect a fix by tomorrow.

Awesome, thanks! and keep up the great work, love the mod!

You can keep this issue open for now, so I don't forget to implement the actual fix :)

9.1 fixed it kinda, one tank no longer gives a blood extractor but now two tanks do.

I could've sworn I tested this case...
Well, I'll fix it for the next patch release.