You should probably know that loop is not an exact science
The track need to be well balanced in terms of bars and volumes start and end because otherwise the clicks and pops appear.
The track is only battery or a complete theme?
You can try 2 ways:
put a fade in and fade out very fast in order to mitigate or eliminate these noises
try new loop points
these results are better if the band is constant (eg battery
Hope I have helped and good luck
Even when I use a loop with a fade out at the end, I get a click. I've tried getting rid of every effect on the track and the same thing happens. What I'm most frustrated about is, I don't have this problem at all using a loop pedal that's almost 7 years old. Mainstage 2 should work flawlessly!! I must have something set wrong. I should mention that I'm not syncing to a tempo. These loops are on the fly.