AiWander must update mIsWanderingManually when resuming wander.

CHANGELOG.md

@@ -84,6 +84,7 @@
     Bug #7630: Charm can be cast on creatures
     Bug #7631: Cannot trade with/talk to Creeper or Mudcrab Merchant when they're fleeing
     Bug #7639: NPCs don't use hand-to-hand if their other melee skills were damaged during combat
+    Bug #7647: NPC walk cycle bugs after greeting player
     Feature #3537: Shader-based water ripples
     Feature #5492: Let rain and snow collide with statics
     Feature #6149: Dehardcode Lua API_REVISION

apps/openmw/mwmechanics/aiwander.cpp

@@ -229,7 +229,7 @@ namespace MWMechanics
             }
 
             if (mPathFinder.isPathConstructed())
-                storage.setState(AiWanderStorage::Wander_Walking);
+                storage.setState(AiWanderStorage::Wander_Walking, !mUsePathgrid);
         }
 
         if (!cStats.getMovementFlag(CreatureStats::Flag_ForceJump)
@@ -499,7 +499,7 @@ namespace MWMechanics
         if (!checkIdle(actor, storage.mIdleAnimation) && (greetingState == Greet_Done || greetingState == Greet_None))
         {
             if (mPathFinder.isPathConstructed())
-                storage.setState(AiWanderStorage::Wander_Walking);
+                storage.setState(AiWanderStorage::Wander_Walking, !mUsePathgrid);
             else
                 storage.setState(AiWanderStorage::Wander_ChooseAction);
         }