Right, so I'm not sure if this is intentional, but my rogue has reached level 3, but the damage die for sneak attack is still only 1d6, not 2d6. Additionally, while I was testing out weapons, I equipped a greatsword on my rogue and was still able to sneak attack. I am unsure if this mechanic was put into place intentionally, as in tabletop 5e, sneak attack only works with finesse weapons.