Actors don't path to the player character in some situations
There are some situations in the latest nightly were actors don't try to path to the player character and so they become a sitting duck and only attack when the PC is at their attack/weapon range, this doesn't happen with 0.46 or when navigator is disabled.
An example is when there's a bar counter between the player character and actors, here are a few screenshots:
If I open the bar door the NPCs then can path to my character, here's my save: Bar_Fight___1.omwsave