Same issue. Using Cubase 11!
A. Why put all that effort into making a synth and then letting one bug render it completely useless, and
B. How has this not been fixed yet? In over 5 years?
Cubase does a lot of things right, but stuff like this and not just having a “humanize” function for quantizing drums (“no problem, just spend days doing it manually!”) is what makes me think of switching DAW’s. At least there’s sidechaining now.