Ive tried Nullius for a bit. The mod has alot of early recipes in the Chemplant
with 4 different fluids (2 out 2 in) . This creates 4 recipes obviously.

While the hotkey does cycle through all 4 of them it only ever switches the output,
never the input, even though in the buildings menu the inputs are switched.

I never had this issue because i always had all recipes shown, but in this mod that creates alot of spam.

Edit:
I unhid and the issue lies elsewhere. Even manualy selecting the recipes the input never switches.

Edit2:
I might have found a reason for the issue. It works fine for the mods version of the refinery.
But it gives the chemplant an extra liquid passthrough down the middle.
So there might be confusion/problem with the added liquidbox index.