Bug: The hint message never closes while a dialog is open.
It does, however, change with new messages, while a dialog is open.
Problem: It a bit annoying when it never closes, especially if you use a dialog which is open for long periods of time and that dialog could generate it's own hints too, but they will never disappear, until the dialog is closed.
It also means text or listBoxes in the top right of the dialog are covered over by the hint box permanently for the duration, disrupting the dialog's usage.
Plus most dialogs are semi-transparent, so you wouldn't miss the hint normally, (but I'm unsure if it's on top or below).
Expected: The hint should time out like usual.