Why does the Xiaomi Robot Vacuum X20 Pro still experience collisions despite having obstacle avoidance sensors?

The Xiaomi Robot Vacuum X20 Pro is equipped with several obstacle avoidance sensors designed to help it navigate and clean effectively while avoiding collisions.
When the Xiaomi Robot Vacuum X20 Pro still experiences collisions, please refer to the following information:
1. Please wipe the lens of the line laser sensor with a soft dry cloth to ensure there are no fingerprints or dust;
2. Some surfaces with darker colors and higher reflectivity (such as metal), transparent objects (glass walls), smaller table and chair legs, and some shorter obstacles, or obstacles appearing in the detection blind zone, will not be occasionally detected;
3. When the ambient light is weak, the recognition ability of six types of objects, including fabrics, power cords, feces, shoes, bases, and weight scales, will decrease;
4. When the device encounters flexible obstacles such as curtains or doors that are ajar, it will slow down and lightly touch and collide, or completely avoid contact. If there is slight contact, it is a normal phenomenon;
5. If the home environment is complex and there are a large number of ground obstacles trapping the robot vacuum, collisions will occur during rescue.