Causes
If the included ramp is not installed, the robot's charging contacts may not align correctly with the dock, leading to docking failures. Follow the instructions in the Roborock Max+ User Manual to install the ramp.
Occasional software hiccups may prevent proper docking. Restarting the robot can resolve minor issues. Hold the power button for 3-5 seconds to turn off the robot, then turn it back on. You can also manually send it back to the dock using the Roborock app.
Internal Software issue
If the robot continues to have trouble docking after checking all other causes, a factory reset may help. Hold the power and home buttons simultaneously for 10 seconds until the robot beeps. Reconfigure the device in the Roborock app afterward.