"Follow" not working as a second AI package
When both AI_Wander and AI_Follow packages are defined in the CS, the Follow has no effect in OpenMW.
Tested with a creature and with a Follow package targeted on "player", but the effect will be the same with NPCs. I find 25 NPCs in Morrowind.esm with both AI_W and AI_F packages defined. This is especially relevant for some Morag Tong quests in which NPCs are supposed to defend the target even if the player made the NPC attack first.
coc "Vivec, St. Olms Haunted Manor" find NPC "Dram Bero" startcombat player (or taunt or frenzy him) Vanilla: the other 2 NPCs attack the player too.
(for a creature and with a Follow package targeted on "player": in vanilla they only adopt "follow" behaviour to defend the player in combat and will otherwise stay/return to their place, which makes it possible for a mod to make creature guards, despite two bugs/drawbacks: the creature will follow when player uses a load door near them, and the creature permanently follows if a Command spell is used)
(RM-4304 from redmine: created on 2018-01-21 by rot tor, )