Hi
I have a List sharepoint form ( Projects ) with a lookup column that pick data from a secondary list ( Client_List ).
I used ComboBox to select data with the property Items setted as below:

When i add a new item it works fine, but when i want to edit an item inserted the form doesn't show the data from lookup column.
Default property of the ComboBox is setted to "Parent.default", DefaultSelectedItems is empty and the default property of the data card is setted to "ThisItem.Client".
Where is the error?
Thx