I've been replaying Fallout 4 for a little bit now after just having finished reinstalling a bunch of mods and I've been using a test playthrough to find issues and iron them out. So far it's been great. But now I've discovered a big issue.
I was just now trying to test out some snow and winter mods so I disabled True Grass by l00ping so that the snow could apply to the land correctly. Doing so messed up a bunch of my other mods. For example, my character lost their hair and eyebrows, eye packs stopped working so I just had vanilla eyes, wearing certain modded outfits would make the body invisible, Pip Pad was invisible. These were just the things I noticed when loading the save, so I didn't explore to see what more its affecting. It even prevents this mod from working and all it does it disable creation club messages on the main menu, not even affecting anything within a save. I even kept that mod enabled while disabling every other mod, and it still doesn't work without True Grass. Starting a new game doesn't even fix anything either.
The True Grass mod page has its posts tab hidden (which in my opinion shouldn't even be allowed) so I can't find out if others are having this issue or if the author is aware, which is why I am here now.
True Grass is dependent on nothing and there are no mods in my load order that depend on it. It requires no ini edits and has no special install instructions. Nothing in my load order conflicts with it (which wouldn't matter anyway if its supposed to be disabled). Re-enabling it will bring everything back to normal as if there was never a problem.
I have no idea what could be the issue and how a simple grass mod could affect the whole game like this. Any help would be much appreciated.
Edit: Solved. Solution copied from my reply below
"I don't have a Textures folder in Fallout 4's Data folder because Mod Organizer doesn't actually place anything into the data folder, therefore not actually replacing and deleting any files. This was why I was confused as to how TG could possibly replace other mods textures since overwritten files aren't actually removed from MO's "data folder". So I went and looked at where the mods are stored and all the textures were the ones that came with their respective mods, as it should be with how MO works. So this gave me the idea to remove each file within True Grass until I ran into the problem. Everything worked until I removed the TrueGrass.ini. So I took a look inside the ini and realized something.
TrueGrass.ini has the text you're supposed to put into Fallout4Custom.ini:
So I checked my Fallout4Custom.ini in Documents/My Games/Fallout4 and sure enough the edit was there where I put it. I then checked the copy that MO keeps within itself and, unlike the original copy, this one didn't have the necessary edit. So when I ran the game through MO it was relying on the edit within TrueGrass.ini to make the rest of the mods work.
I am upset that this was the issue all along. I didn't realize that MO's copy of the ini wasn't a complete copy of the original one and thought the edits would carry over to the MO copy."
Edited by ACSpiral, 14 May 2020 - 06:45 AM.