hey i have a bug that some receipt whitout ingredients gets errors. i saw that you fixt that in version 0.14.2 and in this version also all things work fine.
my factorio version is 14.12
this items are from biotech yuoki and dark-matter-replicators as far as i can tell.
i woud like if you take a look on it and perhaps fix it because your mod is awesome

Sounds like I probably re-broke it in 0.14.3. I'll take a look at it, thanks for letting me know. Glad you like the mod!

Same here, played all worked well, upgraded AutoRecyclngplant and Bottleneck and then get an error loading recipe prototype "rec-biotech-sand". I deleted Biotech then I got "rec-repl-iron-ore" which I assume its from the dark-matter-replicator.

@Evil Pickle, simple fix, what I had to do for Reverse Factory was just an

if next(recipe.ingredients) then --more ifs then add recipes-- end

Specifically, changing line 29 in rec-update.lua to

if (next(rec.ingredients) and ((not rec.category) or (has_value(allowedcats, rec.category)))) then

fixes the problem

Ahhh, thanks for that! I'll get an update uploaded later.