My bike is a 2016 ex BMW off road school bike. I bought it Jan 2017 with 3000 miles its now done 24000, it had a "rip off" 2nd service at may 2017 at local BMW dealer, since then I've looked after it myself and the rear caliper has never been off by me???? Yes the only things missing were the caliper bolts all threads an mountings are ok!!?? It was 100% bolts came out with caliper falling into rear wheel spokes. I am a fully qualified motorcycle mechanic with over 45 years in the trade !!!!!! This is going to kill someone soon!!!???
Have you ever removed the caliper ?

