As described in the title, the HSI and INS never agree on Distance and Time. HSI is set in INS mode and, as it can be seen, I don't have any active VOR tuned in. Is this a quirk of the real aircraft or a bug? In that case, which reading is the correct one? Also, the AP has never managed to track the INS properly in all the flights I've done, always a bit off-set, especially when the TO and FROM waypoints are close to each-other or in tight turns.

Also the onboard map has no clue on where the aircraft's at even though INS drift is OFF and the position was properly loaded with the stand's coordinates before the flight.