Suppliers response messages are not being sent back to buyer

Summary

Suplier cannot responds to buyer message in supplier portal

Content

1. Created RFQ
2. Published it
3. Clicked on message and sent a message to all Suppliers.
4. Logged in the Supplier portal, for one of the supplier which was invited
5. Clicked on View Active Negotiations
6. As soon as we open the RFQ, we can Messages(1), and when we open the Message , we can view the Message which buyer had shared.
7. Now when we select the message and try to reply on that, once we reply back.
8. Go back to buyer login and see if you are able to view the reply on the RFQ-- But no reply messages from supplier can be seen here.