Certain buttons not working once shared on the App

Hi! 

It's my first time using XD and I have created a prototype for an app. 

Everything works correctly when I view it and click all the buttons on my computer both on the app and on my browser but when I share it to others and use it on my phone, the back arrows work inconsistently or dissapear. This is especially on the "create advice" pages. 

I have checked that all the components are linked correctly and everything looks fine on the file.

Is there anything that could be done to fix this? 

Thank you so much, 

Goya

https://xd.adobe.com/view/290efce1-460b-48ec-9147-76034fb86be7-7c5d/