I'm using SE, K2, all of your BZ updates, your MetalsForYou update, all of Ashier's updates of Planetfall's mods (nickel, brass, etc.) and Trikop's bismuth and manganese.

The thermofluid recipe is totally unchanged from base SE. When I hover over it, it appears like it wasn't modified by any mods at all. The little blue text up above says only "Space Exploration", instead of something like "Space Exploration > Salt and Chlorine > Nylon". The same is true for the cryo slush thermofluid recipe, which I think is supposed to get modified too. Nylon and chlorine otherwise seem to work totally fine, so I think it’s something about the thermofluid recipe rather than either of them.

So... what's the expectation? Why do you think it should be modified?

Well, according to the source code, bzchlorine2 should replace 1 copper plate with 1 salt, and Nylon2 should then replace that salt with 5 ethylene glycol. The recipe for ethylene glycol is unlocked by the thermal radiator tech, as intended, but the thermofluid recipe isn’t changed by either of the mods.

I initially found it strange that ethylene glycol seemingly had 0 uses, but it was unlocked by thermofluid tech. I figured it was something unfinished, but I checked the source code just to be sure, and found that there was supposed to be a use for it after all. And that’s how I found out bzchlorine2 was even supposed to make its own change, as it never would have crossed my mind otherwise.

Bzchlorine2 is also supposed to add salt to the cryonite thermofluid recipe, and that change also isn’t visible in game. The conditions for these recipe updates seem to all be met (SE and K2 are installed).

Ok, I’ve found the cause of this and fixed it. The code in both mods uses the incorrect (outdated?) names for the recipes: “se-space-coolant” and “se-space-coolant-cryonite” rather than “se-space-coolant-hot” and “se-space-coolant-hot-cryonite”. Changing the names to the former fixed everything.

Also, in the process of figuring this out, I found some minor bugs in both mods. In recipe-updates of bzchlorine2, at one point “kr-chlorine” is misspelled as “kr-chloring”, causing one recipe change to fail to take effect. And in Nylon2’s recipe prototypes, “biomethanol” is used instead of “kr-biomethanol”, causing the mod to fall back to a K2-free version of a recipe even when K2 is installed.

I hope this is helpful. And thank you so much for updating these mods.

I guess the ethylene-glycol should also be used in se-space-coolant-hot-cryonite? It seems wrong that that recipe keeps the salt instead. I'll just add that as well and you tell me if it's wrong.

Fixed are ready to be released.