Confused by out of view vs inview priority

[AlbyGNinja]

I'm using inview with fullpage.js and i'm getting into this strange issue sliding left and right:
Basically, when i'm in a specific section i wanna show the .fp-controlArrow only in the first slide, then hide them. So i assigned .hideFpNav to all slides i won't show those arrows, here is the code:
$('.hideFpNav').on('inview', function(event, isInView) { if (!isInView) { $(".fp-controlArrow").removeClass("d-none"); console.log("out of view - isInView value: ",isInView); } else { $(".fp-controlArrow").addClass("d-none"); console.log("in view - isInView value: ",isInView); } });
I attach a little gif to explain this behaviour, hope it's clear.
(In the video you'll see 3 slides:
1st: must see arrows
2nd: must hide arrows
3rd: must hide arrows )