JGlossator - Interactive Tool for Creating Glosses from Japanese Text

I have some trouble with the software today. When I launch it the window is invisible. If I select the app from the taskbar I see that it gets active as the default input language switches to jp. Also if I copy a japanese sentence I can still hear the audio file triggering but the window stays invisible. Any suggestion ?

Edit : if it can help, it happened after I've unzipped the JDIC audio clips in the audio folder.