I have 3 tracks of stereo audio that are patched into channels 1-2, 3-4, & 5-6. Everything seems to be working correctly in terms of the structure however when I re-import to check the file there are glitches every 1 second in the dead spaces where should be no audio. It's driving me nuts. Can anyone shed some light on what I'm doing wrong? Screen grabs below.
Timeline / Mixer
Final result (You can see the spikes in the spaces between the waveforms)