I have had a few rehearsals and played extensively at home with 4.03, but had something happen yesterday at my gig that was very odd.
I use the return input on the back and have my synthesizer going in there.
I run performance mode, and either have the effects loop engaged or not on each rig depending on if I am using the synth or not.
At soundcheck I could not get a signal all of a sudden from the synth, so I was checking the 2 connections, changing out cables, and nothing.
So I had to get through the first set without it and rearrange the setlist as a few tunes need the synth and can't really be played without it.
At the first break, I power down the Kemper and synth, check the cables again, and still nothing.
On a whim, I plug into the Alt Input, and all of a sudden there is the synth.
Using the Alt Input, now was engaging the effects loop for some reason.
I will try to see if it does it again tomorrow at rehearsal, and will open a support ticket if so.
Just odd that the inputs changed like that for seemingly no reason?