New user so i am sure I am missing something.
I load a video - adjust the sliders to the segment I want and then choose export.
It saves a file, I then reset my sliders to another segment and choose export, I give this file a new name but it will not save anything. Must i really shut down the program every time I want to save a clip?
Are you sure you selected From : Source each time when exporting ?
If Playlist is selected and there is nothing IN the playlist, Shotcut will only export a blank frame.