Can't choose Samurai as Subclass for fighter

Hey there,

I have the problem: I can't choose Samurai as subclass for my fighter. I can only choose Champion.

I have Master as subscription and delete already browserdata and restart browser. Re-Create the charakter. Sign out and Sign in again.

It doesnt help, someone who can help?

best regards

Koerby

In the character builder, Home Tab, do you have Expanded Rules and Legacy Content toggled to on? 

Also, I assume you own a copy (or have someone in your campaign with shared content) of the Xanathar's Guide to Everything?