A/T wont Idle thrust even when there is excess speed regardless of it being a selected or managed speed. please see the approach. the only way I could slow down was to disable A/T and use speed brake. i believe this issue has been touched on already but here is a vid check out the arrival. SP1 correctly installed. this is the 2nd flight and is the same behavior each time. Just seems like the A/T wont move to Idle even when needed. I also noticed that I had a speed constraint of 220 on a way point that the aircraft followed then the next way point had 200 as a spd constraint but in-between the speed went too 240kts. i didn't allow this to happen as i took over the throttle so dont know if when i get closed to the 200kts constraint it may have slowed down, it should not speed up in between anyway. it did sucessfully keep the 290/.70/3 I set in descent correctly just didn't idle the throttle in the later stages where its important for it to do that quickly to get me ready for landing. i also had to disable A/T for finals as if i put it on it just would not idle.