Hi. I'm here to report an issue involving datapacks with this mod and why I'm reporting this about it's datapack(s) is cause I'm sick and tired of losing my worlds due to incomplete or missing data within the datapacks of some of the mods that I'm playing with which at some point I lose the world that I would be playing on and how I know this is cause when making a new world you can apply datapacks except for datapacks that mods adds and when I look in there I see some red ones that when I hover my mouse over them they say "Incompatible, made for an older version of Minecraft." When I would try to load into a modded world I get a message that says that the selected datapacks have errors and asks me to either enter safe mode (which I can't enter safe mode) or go to title screen and in the message it says that I can manually fix them which Idk how to fix incomplete or missing or even broken datapacks to mods that has these errors!!!

I'm not entirely sure what the problem is. ItemPhysic has a small datapack which enables instant pickup. Not sure how forge is handling these. I have no experience myself. If it's a big trouble just open the jar file and delete the folder data. Sorry for the trouble ... but I don't think I can help you further. Maybe ask someone else how to handle those issues.