A possible bug in the Amethyst, 0.54.2-play.
Vitor Pamplona
While scrolling the home (following) feed and opening random post and then going back, always get you at the begining of the feed and forces you to scroll all the way back down to continue checking older posts.
While in global feed when going back to the main global feed, you can continue scrolling from the post that you've chacked.