For example combobox not saved:
Items: Filter('Item - suppliers', BU = ComboBox2.Selected.Title)
Update: DataCardValue14_1.Selected.Title
Default: ThisItem.Supplier
Toggle not saved:
Update: DataCardValue26.Value
Default: ThisItem.'If item is in country, but activity is not in the system for any country'
Text not saved:
Default: ThisItem.Cost
Update: Value(DataCardValue8.Text)
for each type there is another field with same functions built that are being saved all right. Sharepoint columns settings are also same.