Hi,
I'm not sure if this is new but it occurs in the most recent release OS, 5.7.4.14373. I've got my unpowered Kemper with the monitor out connected to a solid state power amp powering a guitar speaker cab. The monitor out is set to Monitor Cab Off. I've also got the S/PDIF output, set to main out, going to my audio interface. The KPA's cab is on on that output. When I change the cab settings such as high shift, low shift and character I can hear the changes on the real speaker connected to the power amp and monitor out. Shouldn't that output be independent of the cab settings?
Thanks,
Brian