I can't drag the audio files

For some strange reason, when I import my Storyboard Pro 4 files to Storyboard Pro 5 it won’t allow me to drag the audio files. It’s as if they were locked, only that they are not.
Am I not seeing some button that I should press on? It allows me to cut or stretch the files but no dragging allowed.

Hi LordDale

Can you contact support@toonboom.com by providing the OS you are using and the entire screenshot of Storyboard Pro layout?