I am running the latest beta as of today: 7.1.19.
I did a quick test of a DI profile of a XMS+ module in the Synergy with an OH IR. I hit the low E string, then played a few notes over it. The Low E seems to disappear when playing over it. I also tried it with all the effects turned off, and the issue is there.
I checked and this is not the case with the amp.
I also checked with headphones (to eliminate a problem with the interface) on the Kemper and it is there.
It seems that it's either a problem with the profile, or the OH IR. I tested a merged profile that I made a while back, using a stable firmware version, and the issue does NOT exist there. I checked another DI profile that I made in the last few days of an Ultra XL module, and it's there also.
Is this a beta profile issue? Is this a problem with IRs in the Kemper? Has anyone else had this issue?