Fighting NPC "Mask of Terror" most if not all combat attacks/spells miss regardless of what party does. Best way to hit the NPC is an aoe attack that requires saves. NPC bugged out prior which may have caused this issue, but was ultimately killed.
It was found that animal companions have issues traversing the under area where the masked NPC's are located. These pathing issues made it almost impossible to move the rangers animal companion in and around the area even though it was fairly level for where it was traversing with no observable obstructions.
The Mask of Vengeance NPC's has an extreme vision area that can see on top of various pillars, through walls/pillars/columns etc with little to no issues.
