Fiori CRM My Opportunity Error: Could not save the opportunity when add product

Hi Experts,

We have implemented the standard CRM Fiori Application "My Opportunities" in our landscape.we are facing an issue in the feature "Add More Products" against an Opportunity.Navigation path that was followed to re create this issue is as follows.

Fiori Launch Pad -> My Opportunities -> Select Opportunity -> Edit -> Add more products -> Add same product again without input value-> Save

Does not allow to save the opportunity if we tried to add same product in edit mode giving the below error.

Could not save the opportunity

Property 'TotalExpectedNetValue' at offset '161' has invalid value ''

Any help appreciated.

CC : Masayuki SekiharaBabu Ganesh V