Messaging App in Windows 8 showing duplicate outgoing messages

It is not a question of "if" Skype has replaced  messenger App in 8.1.  Microsoft has already discontinued Windows Live Messenger, you don't really think Messenger App will be around much Longer. Hope this helps and if you need any further assistance post and we will be glad to help you.

The above opinion is mine and mine alone and doesn't necessarily reflect that of Microsoft, it employees, or any other member of this forum.

"When you try to pick out anything by itself, we find it hitched to everything else in the Universe." - John Muir

This is not just an issue of the Win 8 Messaging app, but also an issue of Outlook.com.

Further if you have not connected Skype with Facebook you can't Chat with People on Facebook using Skype....

There is some gap to be closed or some issue to be fixed :-)

PS: Yes, you can link the Skype account to Facebook too, but does this make sense if the Skype account will be replaced by the Microsoft account on a Long run?

Why fix it when the App has been replaced by Skype.. Hope this helps and if you need any further assistance post and we will be glad to help you.

The above opinion is mine and mine alone and doesn't necessarily reflect that of Microsoft, it employees, or any other member of this forum.

"When you try to pick out anything by itself, we find it hitched to everything else in the Universe." - John Muir

The double message only appears in the Messaging app itself. Microsoft should take the time to address the bug - whether chat is open in the browser or not. 

It's just a goofy little glitch, but there is no reason we should need to address it on the user end. This is something Microsoft should fix, because it is stupid to leave such a minor problem hanging for months and months.

The same issue appears in Outlook.com in a Facebook chat