Can't share to Instagram Stories

[dashcsn]

Plan

Premium

Country
Brazil 

Device

Xioami Mi A1
Operating System

Android Pie

Since this feature has been released I could never find this option when I try to share to Instagram Stories. When I click Share>More, all I can see related to Instagram is Direct Message. My girlfriend has the same phone model as me, same OS, and we have a family plan on spotify, she has this feature on her app since June, but it never showed up for me. I have already reinstalled both Instagram and Spotify (twice, already) and I still have this issue.  What more can I do? 

 
Thanks!