Doesn't enter values in combobox through Keys operation.

Hi

I had a script in which enetered value F or FL in combobox through keys operation which was executing fine for many releases.

But when executed recently, it doesn't enter value through keys operation. when clicked in the combobox, it expands and dropdown shows the items but doesn't enter the value in order to select the value that is filtered.

Please suggest a solution. Don't understand is this b'se of Test Complete Version update or Telerik update on our application.

Attached UI, statements used in Test Complete.