Why does the Xiaomi Robot Vacuum E5 leave watermarks and streaks after mopping?

After mopping, it is normal for some watermarks to be left behind as the floor dries. The visibility of these watermarks largely depends on the type of flooring and lighting conditions. It is recommended to schedule regular cleanings with the robot and replace the mop in a timely manner. As the floor becomes cleaner over time, the watermarks will become less noticeable.