After spending about 45k searching for a decent nase to attack (TH9, range 1500-1600), I got one with a vacant hold in the centre part. OK, expecting tesla, I dumped some barbs and took it out. Storages aplenty awaited, so the others came in thinck and fast, including two heros at mid level.
Then every single unit failed to attack the mortar two spaces away, no walls by it, nothing. Not one troop went to it. Giants peeled off to attack walls, so I let loose some wbs and they vacated the centre. Then new giants arrived and went for archer towers six spaces away, ignoring the mortar. By the end that mortar wasted every troop. It just sat there and rained destruction. And it was level 4. I got some loot, so I didn't mind, but it was pretty frustrating. Even the AQ preferred attacking a barracks over a wall than the mortar killing her. Mindless.



