Grating type noise

Hello,

Hello, this is my second Dreame robot. My first was an older model with a non rotating mop head which made no noise mopping.
Please can someone confirm if the grating type noise i am hearing is normal on the rotating mop heads. Only hearing it about 50% of the time though which is odd.
No obstructions of wheels and mop heads on correctly.
Is anyone else hearing this and is this normal with new models
Many thanks
S

Hi, could you update a video showing the noise your device makes?

Hello, i also hear this noise when the robot is vacuuming. I can hear it only 50% of the time. It is a grating noise as if a piece is hitting another piece on the belly of the robot.

Hello, i am trying to post a message here and it is being deleted