No mods, updated to the latest version, all DLC.
1. This one is hard to describe, but occasionally you can find a series of very fresh tracks on the overworld that come out of nowhere and continue being created like an NPC party is walking there. But the actual group itself is not visible, their composition cannot be seen past what type of footprint they left and they don’t seem to be able to see the player party either because they never change direction.
And here’s an example with the undead. This seems to occur more often around camps.
2. Enemy deaths caused by Bleed do not grant any experience. This screenshot was from an arena combat against two gladiators where both of them bled out, so I don’t know if post battle loot is also affected.
3. Minor visual bug with decapitation.
4. Humbert spawned on an inaccessible tile several elevation levels above everyone else and could only sit there uselessly.