Im playing in a MP right now and i attacked an Indi territory, then my battle report said I lost but then i watched the replay(couldnt really accept the failure so I wanted to see what went wrong), According to the battle replay I won...wiped out most of the Indi troops and routed the rest but I still lost...I never got the territory And I lost alot of troops(troops that I didnt loose in the battle replay)....the territory is still neutral.
And nopp there wasent another Human nation attacking it at the same time as me, so they couldt have beaten me...mabey this is common but i never experienced it in SP games