3817204 - Why did the values for required fields in 'Nightly Lodging Expenses' disappeared after saving the itemization?

When the user adds to the report a Hotel expense type it is required to create the Itemization and enter all of hotel’s details (Check-in Date, Check out Date, Room rate, breakfast etc.) After saving the expense and clicking on Nightly Lodging Expenses tab, some required fields (Check-in Date, Number of Nights, Room Rate) are empty. Why did the hotel details disappear? 

After filling up the required fields in 'Nightly Lodging Expenses' tab for expense type 'Hotel' and saving the itemization, certain values disappear from the required fields. , KBA , CON-EXP-ADM-EXT , Expense Types , Problem