Based on new Bonus Action nesting rulings, if you have multiple attacks and are two weapon fighting, you can no longer attack with main weapon, attack with off-hand weapon, and attack with main weapon in that order? The ruling is that the text of a bonus action matters. The precondition for using two-weapon fighting (PH, 195) is making an attack with the Attack action, so if you make an attack with the Attack action, you can now take the bonus action.
— Jeremy Crawford (@JeremyECrawford) May 17, 2018