Hello, What are the reasons when a query engine gives a "Empty response" when i tried to query? i am using MongoDB as a vector store and i use load_index_from_storage to retrieve the index.
oh so you are only storing the index store in mongodb. There is still a vector_store and docstore objects that are being lost here because they aren't being persisted
i use mongodb because i can use both docstore and vector store, and i seem to realize the problem now because in the db their are no embeddings being saved