All Effects have stopped working - How stupid Am I??

Hi all

Have been playing happily since I got my kemper last week and all was working great with and without the remote connected

Now all effects have stopped working

I have everything switched on as before

Main output is set to "stack" I am coming out of the left main output into a line 6 powercab plus

As I said all working perfectly yesterday - today no effects

I would be grateful for any advice as I wade through the big boys manual

Thanks

Andrew (A grateful Newbie)

Quote from paults

Change your Main Output Source to "Main Mono"

Thank you paults - all good now

Quote from TomR

Have you checked the output settings according to the manual? Away from my Kemper but I use master mono or master Stereo...

Reading through manual now and sure I will come across it - I really should read them before I do stuff but in general MOST of the stuff is logical it's just the odd bit I am getting caught up on

Thanks