The scrolling position in the Heroes list is not preserved when you farm soulstones or equipment fragments.
Steps to reproduce:
* open the Heroes list
* scroll down to some hero and click on them
* click [+] to bring up the "Soulstones located in:" popup
* click on one of the locations
* hit 'back', [x] and [x] to return to the heroes list
You will land on the top of the list. Same thing happens when opening "Where to get" equipment location list.
My daily routine involves going through the hero roster top to bottom, picking the ones I want more soulstones for, and quickly sweeping a corresponding good node. The abovementioned issue forces me to constantly scroll from the top. This can be avoided by opening a hero's details and pressing the Next button, but that has horrible loading delays because of the card image and equipment.