3 Reasons Your Robot Vacuum Leaves Streaks on Floors
The mopping pad is dirty or worn A grimy pad just spreads grime instead of cleaning. Swap to a fresh microfiber pad and see if streaks disappear.
The water or cleaning solution is wrong Tap water in hard water areas leaves a film when it dries. Use distilled water or a hardwood-safe cleaner instead.
The pad is too wet or too dry If the mopping module is set to max wetness on wood floors, it can leave streaks. A pad that is too dry just pushes dirt around. Adjust the water level and check the pad material.