Just got kind of digital ringing metallic sound in my Kemper... anyone experienced similar?

Hi,

I am new to the Kemper, only had it for 6 days yet, so no expert.
But tonight when I was playing with it, I suddenly got this metallic ringing when I hit a tone on the guitar. Weird.. almost sounds like there is some kind of effect turned on, but all of them are turned off. I have only been playing with a headset tonight, and have no other headset to compare to at the moment. It was fine for the first hour or so, the this ringing started.

I tried a reset of the Kemper, by holding the System button while restarting it. Loaded all the rigs again, but still the same problem.
Also tried three different guitars, so I kinda rule that out.

Anyone experienced this, or something similar? I have found some threads discussing similar issues, but no solutions as far as I can tell.

All help will be greatly appreciated

A little update: Just tried another set of headphones.. Just regular airplugs. Still the same digital metallic shrill sound. Weird, it just suddenly appeared. The creamy Marshall became Roland cubes with som added metallic effect In other words.. Guitar/cable/headset out of the question.

Quote from paults

So you have the cabinets locked Off?

No, the cabinets are on as far as I know.

Thanks Monkey:)

Quote from Michael_dk

Welcome!

What are you listening on, and how are you connected?

I use a pair of AKG 240's, the 1st version.
Tried a pair of Jay's plugs, just to check if it could be the headset.

Plugged in directly from guitar to front input.

Thanks for the welcome I'll probably be around from now on

Quote from ragingben

Im not in front of my kemper right now, but check in the outputs menu that the full chain is being sent to the headphone output and not just the preamp. I think it's on page 2.

Hi, thanks. I will do this when I get home.
It was working fine until after about an hour of playing last night. Might be that I have done a change by chance though, but should a reset of the Kemper set this back anyway? I did a full reset.
Maybe loading the latest firmware again will do the trick.. Or a full factory reset, if that is possible..