Why is my S Note app doesnt get bigger..?

[Elezen]

My S Note app is weird... im trying to do a list of stuff i need to buy (or other) there like only 3 line showing up and the rest isnt there.... like on my note 3 i could have like more than 20 line showing up and now with my note 5 can only see 3 line.....its so weird... i need to "press" the triangular blue thing to see the whole stuff