Long pause in audio even after I trimmed it in Storyline 360?

Hi, 

I'm very new to Articulate and am trying to create a voice-over for a quick project. In it, I used voice recordings from my files and trimmed it on the Storyline audio editor to where it needed to be with the timing and layers of a specific slide. However, when I try previewing the project, there's a big pause in the audio where a pause used to be even though I trimmed it down. It therefore throws off the timing of my animations on the new layers. I tried exporting the audio back to my files and it sounds correct, but when I use the same audio within Storyline the pause comes back. Any idea why this might be, and if I'm missing something here? Thanks in advance.