Think I may have found a minor but annoying bug in the Messenger 3.0.0 Windows client

If you use the open "Always on Top" for you messenger windows it only works for windows that you open initially to send messengers to others. If the message window has been initiated by someone else sending a message top you, even though the open in the message window shows "Always on Top" as ticked the window doesn't obey it. Other windows can overlay it.