Old page over new one

Hi!

I’m having a strange issue.
I have an initial login page, and for the first time the user uses my app I go to a sequence of pages to describe the app with setRoot. After I push this sequence of pages… However the last page can’t be clicked.
I noticed that the first page - login - sometimes is still there with a z-index higher than the other pages.

Is there any way to solve this?

Thanks