Missing area

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Does anyone know why the vacuum misses these areas? There is nothing in the way. It used to be fine but its suddenly skips these.

But it does Mop it by looks of your map?

Mine does the same

Is this a vac and mop setting? I think whats happening is that the vac and mop is adequate in those areas but where the white lines are is the AI detecting more dust and particles and therefore Mopping and do a high intense suction on these areas as well before going over and mopping.