Hey @tclark228,
Just an update here!
At the moment, the Get recently updated and created contacts endpoint reads from ElasticSearch to find contacts with a recent last-modified-date, and returns them in order of their last-modified-date (most recent first).
In your case, it looks like contact ID 3051’s update was indexed into ElasticSearch a little bit delayed, just after your team had done the first query but before your team had repeated it the second time.
While we aim for a <5s index time from the update, the bulk updates may sometime take longer.