Weird slow query after renaming a property using graphql schema

Regardless of how I setup my cluster or how I end up with my schema, I find very weird that for some particular field the query timesout, lets say:

#this works
query{
  getProduct( id: "0x1" ){
    id
    name
  }
}
#this doesnt work
query{
  getProduct( id: "0x1" ){
    id
    name
    suppliers{
    	id
    	name
    }
  }
}

on the other hand with GQL works all the time, I don’t know how to debugg or search for the error, I even have dropped the predicate and create it and populate it again, and nothing…