Open the BP_AISpawnPoint and copy the video below, this may reset the SpawnAI setting in any BP_AISpawnPoint you have in your levels so you may have to reset those to the AI you want it to spawn, this should not effect BP_AISpawningVolume blueprints.

Next copy the videos below.

Next open the AICharacter_AnimBP and copy the video below.

Next copy the video below.

Then open the BP_MasterAIController and copy the finial video below.