you have done a good job as it has grown 7 new healthy leaves for you!!
i think the reason of irregular and abnormal pitchers is because it does not have the former growing condition it has when you first bought it. i have this mature n. x gentle (with 4 inch pitchers) for about few months, until now it only produces abnormal lidless pitchers (less than an inch) like the one on the upper right of your sanguinea picture......still struggling to keep up to its former glory......
