Hi @SarahPC ,
What is the maximum number of results being returned by the feature service?
Separately, it would be helpful to understand your workflow to understand why over it's necessary to load over 2000 records into the Inbox; the Inbox is not meant to be a full cache of the feature service, but to provide those records that a user needs in the context of their work for that day.
Regarding the button press issues, that was a glitch in the button that has been resolved for the next release of Survey123 - the current beta in the Early Adopter Community has that addressed.