Unable to answer "What number or code identifies this stop?" for https://osm.org/node/9871480451 via StreetComplete 54.0-beta1:

It has two different numbers based on the route. For Red Cliff Route 1 it is stop 3. For Riverside Route 2 it is stop 45.

Attached photo(s):
https://westnordost.de/p/170148.jpg