Mod works fine besides not being able to use the new intermediate product recipes (as 'Nauvis With Everything' mod seems to change the research tree and then it doesn’t get the new techs researched like casting engine units; only those that are unlocked with foundry don’t seem to work, e.g. production science recipe works fine in foundry).

Luckily I saw this just before finalizing 1.3.4, so this should be fixed with the update. Please let me know if not though so I can do more in depth testing.

Thanks for the quick update :).

Sadly it still doesn't seem to fix it though. All recipes work fine without 'Nauvis With Everything' mod, as soon as I activate it again the intermediate product recipes are once again gone (says they are not reasearched in editor mode, like it did before, even with everything researched). Not sure though if the problem doesn't lie in the 'Nauvis With Everything' mod, as that mod changes a few things.

I just read through your description again as well, and I think you might have made a little mistake:
"[...]Suggestions are greatly appreciated and I'd like to make sure this negatively affects as many other mods as possible, [...]"

(I hope you meant as little other mods as possible.)

I just laughed so hard when I realized that typo, thanks for pointing it out. It's unfortunate that the issue wasn't fixed, but I'll continue to look at it for future updates.