I'm playing around with the mod in a test world to see if it'd be a good fit for my modpack, and I've been having some trouble understanding how the Warped Wart and antidote brewing work. I assume Warped Wart can be planted and farmed, but I'm unable to place it on soul sand or soul soil or any block I thought it might use as a substrate. As for antidote brewing, JEI only shows it for awkward potions, while the Creative Inventory shows that there's an antidote potion for most, if not all, negative effects. When I try to make a poison antidote, using a poison potion, a warped wart, and blaze powder for the brewing stand's fuel, nothing happens. Haven't tested it with other potions but I assume it doesn't do anything there, either. Apologies if I have missed something very obvious and I'm making myself look like a fool, I am just not well-versed with Minecraft's brewing mechanics.

Here is all the antidotes in the Creative inventory, by the way.

yeah it works, the issue seems to be with JEI not showing the recipes
use REI instead as I think it doesn't have this issue

if you want to see all the recipes check the wiki too