Chuango Robot Vacuum RV-600 does not continue cleaning from last interruption. The reasons may be:
1. The robot is manually carried back to the self-emptying station on the way back due to low battery level;
2. Manually start cleaning before the automatic breakpoint cleaning has been performed;
3. During Do Not Disturb time period, breakpoint cleaning will not be performed;
4. The firmware upgrade is in progress when the breakpoint cleaning task is triggered.