Hi Pleoguy, a lot of problems sound normal to one and not so normal to someone else, I would think the best way for someone here to be able to correctly diagnose it, would be if you could upload a short video with sound of your pleo, get as close as you can to your pleo and try to tape till you hear the noise, You said it is mostly with movement, Is this with any movement or just leg movement as in walking? I think a video is at this time the best bet to get this diagnosed, Someone else may have heard this befoe but calls the same noise you call buzzing something else, I would think less than a minute should get some good sounds. If your Pleo does not want to move, push the two front leg sensors and send him off on explore mode, and that should give plenty of movement with this sound. Good luck, hope it is something easily fixed if it needs to be.
RedwoodsMama and Nova and friend
