Quark causing Exposure and Supplementaries mod to lose items, Meaning that those items will not be ingame anymore.

Fixed by removing the Quark mod.
I am VERY Inactive on Github hence i'll leave my Discord in here:
User ID: 227489941997879297
Name: Boy17000
I am in the discord.

try using /give

that showed that the item/block does not exist ingame

are you sure the items aren't just missing from creative tabs somehow?

are you sure the items aren't just missing from creative tabs somehow?

Nope, there not ingame at all, not in search bar nog in any of the tabs shown either

try using /give

Some mods might register additional items when quark is on. If you remove quark those will go too, along with all quark items. The opposite I've never heard