Ok I'm messing with this too much!!  I plugged my m13 fx out into my spider valve 112 pOwer amp in , the out to my. M13 effects return. I also have a SHORTboard  that I use and it gave me a default  4 message on the fbv screen,, what do I need to do? I am trying to get some effects to be post and others To be pre is my goal here, I set my post effects on my m13 fx3 to post so I believe all the effects in that module will be post, however my SHORTboard no longer works ( wah volume etc) and I get error on my fbv default 4.   What gives?