Betterbags also overwrites the wallet, unfortunately. That's the conflict.

After I get off work tonight I might see if I can tinker in BetterBags' possibly merge them on my end... Maybe... If it works lol.

This is all I see in BetterBags that contain "wallet" in Clothing_Bags.txt
==============================================
item Wallet
{
DisplayName = Wallet,
DisplayCategory = Container,
Type = Container,
Weight = 0.1,
IconsForTexture = Wallet_01;Wallet_02;Wallet_03;Wallet_04,
WorldStaticModelsByIndex = Wallet;Wallet2;Wallet3;Wallet4,
Capacity = 1,
CloseSound = CloseWallet,
OpenSound = OpenWallet,
PutInSound = StoreItemWallet,
AcceptItemFunction = AcceptItemFunction.Wallet,
Tags = BagsFillException,
MaxItemSize = 0.2,
}

item Wallet_Female
{
DisplayName = Wallet,
DisplayCategory = Container,
Type = Container,
Weight = 0.1,
IconsForTexture = Wallet_01;Wallet_02;Wallet_03;Wallet_04,
WorldStaticModelsByIndex = Wallet;Wallet2;Wallet3;Wallet4,
Capacity = 1,
CloseSound = CloseWallet,
OpenSound = OpenWallet,
PutInSound = StoreItemWallet,
AcceptItemFunction = AcceptItemFunction.Wallet,
Tags = BagsFillException,
MaxItemSize = 0.2,
}

item Wallet_Male
{
DisplayName = Wallet,
DisplayCategory = Container,
Type = Container,
Weight = 0.1,
IconsForTexture = Wallet_01;Wallet_03;Wallet_04,
WorldStaticModelsByIndex = Wallet;Wallet3;Wallet4,
Capacity = 1,
CloseSound = CloseWallet,
OpenSound = OpenWallet,
PutInSound = StoreItemWallet,
AcceptItemFunction = AcceptItemFunction.Wallet,
Tags = BagsFillException,
MaxItemSize = 0.2,
}
==============================================
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

And this is all your fix has in WalletFix_Items.txt
==============================================
module Base
{

item Badge
{
DisplayName = Badge,
DisplayCategory = Memento,
Type = Normal,
Weight = 0.2,
IconsForTexture = Police_Lanyard;Police_Badge,
StaticModelsByIndex = Badge1;Badge2,
WorldStaticModelsByIndex = Badge1;Badge2,
Tags = FitsWallet;HasMetal;ApplyOwnerName,
OnCreate = SpecialLootSpawns.OnCreateIDcard,
}

item Money
{
DisplayName = Money,
DisplayCategory = Junk,
Type = Normal,
Weight = 0.01,
Icon = Money,
WorldStaticModel = Money,
Tags = FitsWallet;IsFireFuel;IsFireTinder,
FireFuelRatio = 0.25,
}

}
================================================

Perhaps I'm just not that good at this, but I don't see what would possibly conflict?? I tried the other wallet fix mod, it got past load into the game, but still had abrupt crash issue that never exists with the wallet mods off, so since yours is smaller and easier, and others have success probably without BetterBags, I'm trying to debug/merge this one into the BetterBags code but.... What are my eyes missing?

This is the BetterBags I'm using: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3386729204

Ok, so after some really puzzling bouts of "why the fk is this conflicting?" the ugliest of solutions has somewhat been found.

(Note [Users\Public\Games] is my directory, your install path will vary)
Open C:\[Users\Public\Games]\Steam\steamapps\workshop\content\108600\3386729204\mods\Betterbags\42\media\scripts\clothing_bags.txt ---Make a backup. I just make clothing_bags.txt.bak

Open it, search "Wallet"

Delete ALL of this
============================================
item Wallet
{
DisplayName = Wallet,
DisplayCategory = Container,
Type = Container,
Weight = 0.1,
IconsForTexture = Wallet_01;Wallet_02;Wallet_03;Wallet_04,
WorldStaticModelsByIndex = Wallet;Wallet2;Wallet3;Wallet4,
Capacity = 1,
CloseSound = CloseWallet,
OpenSound = OpenWallet,
PutInSound = StoreItemWallet,
AcceptItemFunction = AcceptItemFunction.Wallet,
Tags = BagsFillException,
MaxItemSize = 0.2,
}

item Wallet_Female
{
DisplayName = Wallet,
DisplayCategory = Container,
Type = Container,
Weight = 0.1,
IconsForTexture = Wallet_01;Wallet_02;Wallet_03;Wallet_04,
WorldStaticModelsByIndex = Wallet;Wallet2;Wallet3;Wallet4,
Capacity = 1,
CloseSound = CloseWallet,
OpenSound = OpenWallet,
PutInSound = StoreItemWallet,
AcceptItemFunction = AcceptItemFunction.Wallet,
Tags = BagsFillException,
MaxItemSize = 0.2,
}

item Wallet_Male
{
DisplayName = Wallet,
DisplayCategory = Container,
Type = Container,
Weight = 0.1,
IconsForTexture = Wallet_01;Wallet_03;Wallet_04,
WorldStaticModelsByIndex = Wallet;Wallet3;Wallet4,
Capacity = 1,
CloseSound = CloseWallet,
OpenSound = OpenWallet,
PutInSound = StoreItemWallet,
AcceptItemFunction = AcceptItemFunction.Wallet,
Tags = BagsFillException,
MaxItemSize = 0.2,
}
==============================================

It fixed my Load-In crash. Still not sure why, but Todd Howard said it best... "It just works"
A better solution maybe found at some point to allow simple *Subscribe* compatibility, but for now the tinker method does work for anyone running BetterBags with the conflict.

Better bags was overwriting vanilla scripts which was causing havoc for any other mod that relied on them. It was updated a few hours ago with a rewrite that fixes these issues