Switch status not functioning in task view with custom checkbox status #529

In the task view (List & Tree) the "Switch status" menu and buttons are not functioning (nothing happens) with custom Checkbox Status Settings.
The Complete button works as intended.

Also the Switch status no longer displays the sub-statuses but only the overarching category like "In Progress" so which status will be set if multiple are defined (like delegated, testing, in progress, etc.)?