Cannot import sound (Harmony Essentials)

Every time I try to import a sound file, whether .WAV or .MP3, the wave form shows up blank. I have tried switching the sources and even converting the files back and forth. It does not matter where it came from, the type of file, the source, or the sound, all wave forms come up blank. My computer’s volume is all the way up, I have the music icon clicked, there is no sound. There’s not even an error message shown to tell me if something went wrong with it. It used to work perfectly fine before I switched computers but now i’m paying good money for a program that does not work. I’ve had to drop out of two projects so far because I could not get my parts in. I am livid. I use Harmony Essentials. Please help me if you know how to fix this problem.