Sequence node and digicode

Hi all,

I’m trying to make a sequence of button to unlock something. It is very similar to a digicode in the logic.
On the screenshot, you will see where I block : the Int value of ETAPE NB stay “1” while I set it to be “2”. Green circle on the image.

It seems that the sequence node doesn’t check the input in the order, but in a parallel way ?
The pins of the sequence are in the good orders with the other. From the top to the bottom.

Thanks in advance for your help and have a nice evening.

ps : The Int value “Detection appui” works very well. It changes when the player press a button. (A different value for each button). Don’t know if it could help.