KPA not responding to midi program change

  • I've got a prob that has me Baffled Like A Newb; On tour, using a combo of VG-99/FC300 and KPA going out to separate amps. Was starting to use midi to match/contrast patches-I assigned ch7 on the VG & KPA, & set a patch on the Kemper to prog#1, browsed to another patch, hit pedal1 on the FC, & the KPA switched. Beautiful! Didn't have time to program more, as I was at soundcheck, so I thought, I've got a day off in Seattle, I'll do it all then; the KPA has stopped responding- everything is set EXACTLY as before- I've checked I/O, swapped cables, restarted, & no go. Any help or ideas would be appreciated-Thanks :|