I'm trying to implement something very similar to the "manhole components inspected" checklist shown in this blog post
https://community.esri.com/groups/survey123/blog/2020/04/09/survey123-tricks-of-the-trade-repeats
It works as expected until I submit a record then open it from the inbox. The read-only checklist populated by the join is empty. I have the repeat set up correctly to retrieve the records (they are all there) but it seems like the checklist question is re-calculated when opening from the inbox. Oddly, I can't continue to add more repeats to check off additional checklist items either.
Survey is on AGOL published with connect v3.9.120 and used on an iPad with app version 3.9.148, iOS version 13.3