Timesheet - create new entry using Favorite caused error

Hi Fiori experts,

I have had this issue reported from users several times:

Scenario: users start Timesheet from FLP>select a day>Create new entry>select an item from Favorite list>Submit->now UI popups an error (Type related error). Also noted - if user fills out the fields manually instead of using Favorite, with the same data input, Submit went OK.

Since the error shows some Type related info, it looks to me that OData cannot recognize some of the properties in the request? Is this a known error? Or, do we miss some SAP notes for Timesheet?

Thanks a lot in advance,

Dong Zhu