The vegepygmy spawns in the Underdark - Foul Hollows - Moldmire area were not hostile, all other spawns were.
No hostile NPCs spawned in the Russet Ravine or Castle Creep QAs. Loot chests were working fine as was questlog triggers. No combat log indicators of a bug upon enter or exit of the QAs or the Underdark - Foul Hollows - Moldmire area.