I have got a (QT?) bug with the latest Yappari-build 1.0.38..
Everytime i get an Image sent i get exactly 2 times the window to choose my connection, even if i am connected for hours in the same network...
Didn't test it with video/audio until now, but i had 5 pictures received, and everytime after the automatic download started i had to choose an internet connection (clicked in the background to cancel the selection)

/edit: sending images results with the same bug opening the connection-windows twice