Offline progression gone

Hey everyone,

Just launch the game, and suddenly, an error message about saving profile appears and… i lost all my offline progression (challenge stars).
Is this a known issue, is their a solution other than redoing all of them ?

Thanks for you help

What are you talking about?

ARK? they have stars?

Sry i’m talking about Unreal Tournament 4.
I’m not used to forums ^^

Go here for UT4: