Unable to properly create 2014 charcaters

Hi

It has been a couple of months since my group updated their characters and we are having issues selecting normal classes. Here are the steps:

1. I create a new Campaign and share all my Source and Adventure books (I own nearly all 2014 Source books and several adventure books)
2. I go into the Campaign and Create Unassigned Character
3. I de-select Homebrew and Expanded Rules
4. I only select 2014 Core Rules and Legacy Rules
5. I add, for example, the Rogue class by scrolling down to the 2014 Legacy Rogue
6. I level the character to 3 and go to the Roguish Archetype

These are the options I get:
2014 Core Rules:
Arcane Trickster
Assassin
Thief

And that's it! No more options. Can someone please help?

Thanks

Edit: I have just noticed that in the race options, even though I own the Mordenkainen Presents book and I have it shared, I have no race options for any from this book, for example Goliath isn't there. What's going on?

Thanks, this worked. I unticked this option based on another thread here because I didn't want any 2024 stuff.