Had a few flights now, and latelly when I use a high CI, my uutothrottle does not go to IDLE on T/D, it keeps getting high speed, and overspeed in some cases..

Normally when you iniate you descent, VNAV and A/T should put the thrust to idle..but it does not happen, the speed keeps going up and up until you reach overspeed..

Don`t know what causes that issue, but it seems maybe a issue with VNAV path and speed?  >:(