Traits handled incorrectly (limit 1 should be limit 2, +1 drawback)

As title, trait limit for new PCs should be two. Currently adding more than one trait results in "You cannot add any more abilities" error message.

Also, house rules should be updated. An extremely common house rule is that taking a drawback increases trait allowance by one (to max: 3), which should then unlock the ability to take another trait.

Current Behavior: max 1 trait before error
Expected Behavior: max 2 traits before limit, and possibly adding a third via drawback