EiffelBuild Add-on: after having had above problem with the SpinButton I tried a simple Text field to see if the problem shows up here too. Yes, it does when entering the initial text into the Text box of the fields Properties. Next I was just playing around and displayed the sample application window. Just for fun I typed in some characters. To my big astonishment this text was retained as the initial value and reflected in the Properties Text box, not immediately, but when refreshing the properties for this widget. Is this by design or a side effect feature? Next I tried do do the same with the Builder Window. When opening it presented the text, when attempting to modify this text it accepts one character and react with an exception. EiffelBuild closed, then project re-opened. Again similar problem as described in earlier report, that EiffelBuild reacts with an exception during initial display of the project window. At the time of this writing the generated Eiffel code works without a flaw, though a former example (reported earler) now suddenly also triggers an exception at start.