Yes, at first I also thought that I was having this issue with only 1 profile. But as soon as you hear it once you're doomed to hear it in all the cleans, stupid brain
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Also as you say, when using heavy compression or just a big amount High-freq boost it becomes really noticeable and annoying, and even more with the Cab off.
Kemper support acknowledged the problem and seem to be working on it though. Can't wait myself for the solution!
Yeah, I really can't wait. Fingers crossed.