I'm using loops (they're not the loops provided with garageband, they're from another library I have.) in Garageband, and I'm running into a strange problem. Some of them work absolutely fine, they appear orange when imported into garageband. However, others appear blue, and are drowned in echo. Even though the echo on the track is turned off, this echo still occurs. This happens only to certain loops, and they all appear blue when imported. The loops that work appear orange. Any solutions?