Robot mapping and navigation doesn't seem right
I have a new Purei9 robot and am having issues with its mapping and navigation when on scheduled mode. After it pauses for charging and goes out again, the robot seems to lose its place on the map - I can see that the robot is not physically where it thinks it is according to the map on the android app. This means that when it needs to return to its charger a second time, it heads in the wrong direction and has trouble finding the charger, taking more than 15 min to return and often not making it back at all. It also means that it cleans areas it has already done and never makes it to the further away areas.
There is also no cleaning history saved in the app (it says that the total area cleaned in February is 0 square metres, and no previous maps are saved) - could this be related?