Loading edited schema after data insertion


Hello team!
I have built a movie-users-rating-tags knowledge graph using grakn. Since I was studying side-by-side while building it, I inserted the data after the basic schema creation in a user defined key space.
Now the issue is that I want to add new relationship to the schema for my inference rule to work upon. Since that data is already there, it is giving me error
"Relationship {Ebjw2k-c4xy8-f11-ccejs} is missing the value".

It is not updating the new schema in that key space but when I try with new space, it creates it.
What is the solution for this?
I want to update the schema in same key space with data already inserted earlier.
Help required.