Display bug in statistics menu for map completion?

On my 9th try I was finally able to beat Caltheris. Super happy now. But I'm wondering if there is a bug in the statistics menu? When I go in my statistics I see, main objective completed on ashes of the damned but not on Astra malorum. Also it says I've played around 5 hours on this map. But it's at least 20.

So this is a bug, right?