A potential NJ Transit strike could begin if the agency and its engineers’ union fail to reach a contract agreement, marking what would be the region’s first major transit stoppage in two decades. Meanwhile, Albany lawmakers are pressing prison officials for answers after corrections officers were charged with murder in the deaths of two incarcerated people. Plus, the MTA held live auditions Wednesday at Grand Central Madison for its Music Under New York program, with 54 performers vying to become official subway musicians.