Oh my goodness. Been happening for a YEAR in slot 3. Thank goodness you even provided a photo. Here’s your link again for those wondering what the heck everyone is saying by “seating” the bearing. Internet for the win. Was SO annoying, Bambu. Figure it out or add a print out telling new buyers to ensure all bearings are placed, mine was a brand new AMS on P1S as well. 
prnt.sc/9uZE2_oH8t7h