Hi. I came across quite an odd bug in this new playthrough.
I was in a seal-tribe village looking around and trying to find things to trade, and eventually left when I saw everything I wanted to. But I realized I hadn't talked to the villagers for any new quests. So I went back after a few steps on the wilderness map, and saw all the villagers were in combat mode for some reason, when everything was fine just before. Odd. The next turn, everyone left their combat state back into normal again.
I ran into the center of the village to see what was going on, and discovered that the lost adventurer I found in the middle of the wilderness from several weeks prior, must have suddenly started hunting inside the seal-tribe's own reindeer pen. (I know it is him since I still have his quest log)
He had a really easy time I think since the reindeer were trapped, by the time I found him, he was in the pen with two dead reindeer, skinning one, and had a puncture wound on his shoulder, from what I assume from maybe a villager attacking him. I didn't see the fight actually happen.
From the arrows I found in the pen, it's also possible that a villager on the outside of the pen tried to fire inward at him, and accidentally killed one of their own reindeer too. It's odd that a "hunter" would kill two of these on his own and then decide to start skinning.
The good news for me is that I now have two full reindeer corpses to take home without anyone in the village caring.