Perfectly normal. I remember someone from the Sequential team confirming this long ago on the forum.
Personally, I prefer turning down the Program volume in the misc menu instead, for those sounds that may risk clipping, and keep the main volume at full or close to it. That way, I can still have a single oscillator lead-sound cut through by maxing the program volume for that patch if needed, without having to fiddle with the master volume back and forth between patches.