Vector ID #'s are relative to list index which is relative to request call. i.e each request the indexes will reset to a vector will not get the proper ID assigned to it. If there are 125 vectors in the index a new vector must be vector id 126 however if you are inserting in multiple requests or one at a time it is not upserting vectors with proper ID's, rather reusing the same ID's which is incorrect.
Vector ID #'s are relative to list index which is relative to request call. i.e each request the indexes will reset to a vector will not get the proper ID assigned to it. If there are 125 vectors in the index a new vector must be vector id 126 however if you are inserting in multiple requests or one at a time it is not upserting vectors with proper ID's, rather reusing the same ID's which is incorrect.