today we tried for the first time the SmartRTL mode. We noticed that this flight mode does not behave like RTL for the final stage of landing: instead of hovering “x” seconds at the set altitude and slow down landing speed (LAND_SPEED), this mode went down at standard descent speed ( LAND_SPEED_HIGH: 1.5 m/s) which is obviously too fast for a 18 kgs. copter.
Why? The RTL mode follow the correct LAND_SPEED and LAND_SPEED_HIGH, SmartRTL won’t.
.
Did the barometric altitude change significantly during flight? What was the logged altitude while coming down that fast? Maybe it’s just a gremlin messing with you, we won’t know until you post a log.