Hi
On DW v9.2.8 I can't set the source type for options to a checkbox-, dropdown or radiobutton list when I want the source type to be "Select items under this page". When trying I get the error message shown in first screenshot. After I got this error I switched the source type to "Select items from this language/website". That works. But now when trying to change the source type back to "Select items under this page" I select a page in the dropdown, saves the itemtype and then editing it to check the setting. But now the page I selected has been changed to the first page in the website! (see screenshot 2).
BTW if I set the settings in the xml document of the itemtype that I can't set through the backend it works.