Why do I have same related List two times on the Contact Page

Why do I have same related List two times on the Contact Page

hi
i linked the products as related list in Contact.

But my problem is that Products is showing two times as related List (Photo attached),
they looks to me independent as when i assign products they don't show automatically in the other list.. 

When I open one record from each related list i get the below in address bar,.

Link from first related list https://crm.zoho.com/crm/orgxxxxxxxxx/tab/Products/4791898000001392200
Link from second related list https://crm.zoho.com/crm/orgxxxxxxxxx/tab/Products/4791898000000384669

when I import data, it is imported in first Related List 

but when i give the below command, it returns  record from 2nd related list.

RelatedProducts = zoho.crm.getRelatedRecords("Products","Contacts",contactID.toLong());

Please advise. is it due to any code ?

thanks