I noticed a strange quiteness and went near a still existing tree and as the robot came to take it, there was no sound.
After that, I followed the Construction Robots back to my base and directly below the robots, they are still making no sound

I think you mean the alert sound, but I mean the Construction robot itself.Boogieman14 wrote:Possibly related to https://forums.factorio.com/forum/vie ... f=7&t=6691 (with both possibly related to the fix for https://forums.factorio.com/forum/vie ... =11&t=6313)