I get caught by the guitar's volume knob sometimes. The bad one is when everything is on and working but my cursor in DAW is past the fade out.
i feel you, been there twice...really a bad feeling when you discover you plugged again into headphones. should be written in big glowing letters on top of the toaster: plug into the right input.
been there many times and it still gets me scratchmy head every time it happens 🤦♂️
Oh yes. So many times. Nobody can explain this.
It seems to me most amps work left to right. So your impulse to plug into the left port is the right one.
However Kemper, always doing the best engineering work possible, knows most players are right handed and their cord will be exiting the guitar on the right side of the Kemper when facing it. So being plugged into the left side of the unit would mean your chair would be rolling over the cable the whole time you are editing 
Ever plug everything in in prep for a gig, only to get no signal into your Profiler?
You stare at it. Restart….stare some more. Wonder…etc.
….and then…you realize realize it’s PINIP…..(Problem Is Not Inside Profiler).
On my toaster, I had plugged my guitar into the left input. Which is the headphone out.
Derp.
I've never actually done that one before. When I boot up to play at least 20% of the time I do one of the following:
Forget to turn the chicken head knob from tuner to browser mode.
Forget to plug the instrument cable into the guitar.
Forget to plug the instrument cable into the profiler.
Forget to turn the volume knob on my power amp up.
Everytime I do one of the above my anxiety level goes up because my first thought is that the profiler has stopped working, then the panicked search begins to find the source of the problem..... It's me every single stinking time.
I haven't used the headphone jack in five years, don't even notice it to be honest. But now that I've read this post I can guarantee my sub conscience will cause me to plug into the headphone jack and I'll never figure out what's wrong!
when im in a hurry to connect everything that happen to me many times
OMG, how I can emphasise, done every thing mentioned more then once, it is what it is to be human 🙄.
it is what it is to be human
This. Same club here and "sh*t happens". We've all been through that Ruefus for sure.
I think it’s my brain defaulting to pretty much every amp I’ve had or plugged into.
Indeed. Remembering all my tube amps over the years it has always been like this...
What sometimes helps to increase safety in hectic show business situations is some tape or anything else to make sure specific input/output jacks are not used at all. I have such little plastic pieces here which fit nicely and remind the brain of "uh, don't plug something in here!"
Not suprised
I like to change guitars and forget to swap the wireless. I'll see you guys in 8 bars.
Been there, done that... 
I like to change guitars and forget to swap the wireless. I'll see you guys in 8 bars.
This...
I'll see you guys in 8 bars.
That would count as a pub crawl round here 🤣
It seems to me most amps work left to right. So your impulse to plug into the left port is the right one.
However Kemper, always doing the best engineering work possible, knows most players are right handed and their cord will be exiting the guitar on the right side of the Kemper when facing it. So being plugged into the left side of the unit would mean your chair would be rolling over the cable the whole time you are editing
Might be a few of these out there
Just sayin’ 😉
I leave one of these adapters permanently in the headphone out. Saved me many times.
I don't have this matter on Kemper Stage cause Input and Headphone placement is different + Jack is not the same size...
But, once, i had no noise, i've mingled monitor output and pedals inputs...
My Stage is mounted on a pedalboard with a Port on the side with just In, Main Outs and Monitor Out. Age-proof
