Yeah I see that breakdown wheel, but it doesn't always seem to populate with data. Often the ""advantage" is missing even when I should have it (such as when a target has been hexed)

Sneak attacks are always broken down in the log as two separate attacks with the same "to hit" roll. It seems like some of the triggers aren't firing in some cases. Game doesn't seem to grant advantage to creatures that are attacking while hidden consistently. In TT, attacking while hidden is supposed to grant advantage. That could be rule change in this game though, its abused by rogues non-stop in TT games that the DM doesn't apply some breaks to the practice.