Using the Galaxy S7 Edge.
When I press on the achievements tab, either in game or at the menu, it is just blank. I am signed in to my Xbox Live account and everything. On the xbox app it crashes whenever I try to look at only my MCPE achievements so it seems to be something on MCPE's side. It does not say I earned an achievement either so it seems achievements are completely not working for me and not just on a certain world.