Level Up (A5E) Two proficiencies in the same skill?

[Koyh]

If you get proficiency because of the culture/background/heritage and later, because of a subclass you get the same proficiency, does it turn into a expertise dice?

 

[WarDriveWorley]

According to the Adventurer's Guide (under proficiencies, page 25) " If your character would gain the same proficiency from multiple areas, such as a heritage or cultural trait or class feature, they may instead choose a new proficiency of the same type (skill or tool)."

 

[Morrus]

It doesn't, but I don't think it would break anything if you allowed that in your game.