Bug? Rule I am unaware of? Am I just stupid?

[The Panther]

No, none of that happened. Her pretender was there seiging before the battle, and it looks like he retreated normally because he does not show up as dead on the HOF now. I simply broke the seige with a bunch of mages and stuff and did nothing weird.

The air queen and prophet teleported in and died. What was totally weird was that in my battle replay, both of those guys died during the battle while the pretender and icythid lord did escape, which was the final actual result! But in the battle summary, it showed that no heroes had died and all four had escaped. It is almost like my battle replay was accurate and the summary was not, but I have never seen this before. I surely wish they had died because I would have liked to find some of those unique artifacts. But they are now lost, about 200 gems worth of artifacts all together.

Also, she did have some adjacently owned provinces both before and after the battle.

I am begining to not like this latest patch at all with the bogus replays.