Oscilating volume on Kemper

Hello,

I've been having this issue with my Kemper for a few months and I can't seem to resolve it. I was hoping you folks could help. I would describe it as the signal almost cutting out and then returning, thus creating a pumping or oscillating sound. I've recorded it so that you may better understand it. I've tried different profiles, different guitars, and different cables but to no avail. Here is the link:

https://drive.google.com/file/…3jXNWv62/view?usp=sharing

Nevermind folks. It was a misbehaving expression pedal. Took it out of the mix and things returned to normal. Hope this helps someone else!