I don't know if this thread is still active but I have something that may help. I plugged my kemper in and had this very issue. Because of this I found this thread. As a control i thought i would try this with my helix.
The EXACT same issue happened with my helix. (and i mean down to the same milliseconds). Also at time of posting this im using the generation 3 8i6. I dont believe this to be a kemper issue. I believe this to be a Scarlett issue as that is what i use as well.
Hope this helps