Sigma Elevator with Inaccurate Leveling problem in T+ Hotel Butterworth, Penang, Malaysia.

This lift is the only one lift in this hotel. This lift has the leveling problem while in Ground Floor. While it arrives at ground floor, it stops for a while and re-leveling and the doors open. My Condominium's Sigma also at that.
Date: 4.3.2020
Device: OPPO A5S
Brand: Sigma
Usage: Passenger
Capacity: 11 Persons / 750 KG
Serviced Floors: G,1,2,3
Elevator Rating: 6/10
(C) ZJ EleVids Productions.