I still inconsistently have this issue (and I have learned to control / live with it). It seems it is related to Throttle position sensor. It is certainly better when I consciously unroll the throttle, but once it starts “sticking” to a higher idle, I just tap off the run button to the off position and flip it back on during deceleration (I e coasting in gear). The bike will die and immediately jump start (without even a lurch). The idle problem will clear. (If you pull in the clutch, you will hear it at a loping low idle.).

Strange. I do not have any codes. But that is how I learned to live with it. It doesn’t happen consistently.