Can't play offline once opted with Xlive

Age of Empires II: DE II - Report a Bug
1

Game Version:

  • Build (101.101.33315.0)
  • Platform (Microsoft Store)

Issue:

I am playing AOE II - DE since it launched, I played some campaigns, custom games, etc.
If I disconnect from the Internet my all progress is lost, If I reconnect it’s back again.
If my internet is a bit slow games lag as well.