In Garage Band the loop “Loose Spring Synth” changed sound on all tracks without any effects.

I made a song that I liked utilizing the “Loose Spring Synth” instrument, however the sound began cutting out as if there were a filter sweep effect over it. I could not figure out what was causing the issue so I went to a new track to get the sound that I wanted. When I added the loop to the new track, it sounded as if it had the same exact effect on it going very quiet in the middle of the loop. I have a video of this and I would like support for this issue if possible. The loop is “Loose Spring Synth” and I remember what it sounded like before it changed on all tracks. It did not have a filter sweep effect on it but now the sound has a filter sweep effect sound even on brand new tracks.