Arcade - Reset of the levels, automatically dropped to 1st level

I finished the first level of “The authoritarians” the other day as SA (I want to complete all levels as SA) so I stopped there. Next level waiting for me was level 2, that African dictator and his wife. That was few days ago.
However I come today to continue, I see that it’s reset to level 1 and I need to pass level 1 again in order to continue. What gives?

Do you die when was on the mission?

No. I finished it SA.