Hello Jessica,
Is it possible that your do an aggregate list action after your retrieve, if so it is because mendix is bundling your retrieve with the aggregate action and only gives you the aggregate result, for testing you can remove the aggregation list or you can try to use your list later in the process.
If it is not this maybe can you send a screenshot of your datasource flow? and also recheck your security settings!
Hope this helps!
Good luck!
Hello Jessica,
What is the activity that you use after the retrieve activity?
If it is an aggregate list activity the debugger will ignore the retrieve and stop on the aggregationj activity