First time was the day I took delivery (3/10). There was a 2nd brand new one next to mine at the service center, and saw another one driving down PCH in Newport.
Yeah I started noticing this rumbling vibration yesterday on two separate drives. Suspension would still adjust fine and the sound just went away on its own. Added it to my service ticket for next week.
Thanks for sharing! I printed it out in PETG and seems to fit really well. Obviously I gotta clean my build plate and dial in the next ones better. Think I'll try without supports too.