The graph is cut off toward the beginning 4 hours of the current hourly time period
You can see the ‘2409’ matches for the first time the graph is above 0 and the Data Table.
This bug happens 100% of the time.
I included the visits by age in the 1st picture to show that it happens for another graph for the hourly tab. It indeed happens to all graphs within the hourly tab. Repro by having a place with stats, and check the hourly.