[switch] progression/xp lost after map is done

It seem that gained xp From the original heroes is lost when exiting a map after after completion. Xp on the new heroes that have not been active is not lost...

Getting the exact same issue...

Kinda of getting annoying as you lose your progress after doing the wave. If you level up its fine, it saves. When you don't you lose that chunk you got. So it seems like I am never going to get lvl 105.