Graphs empty though device syncs fine

Data from my 265 is not syncing from my 265 with the Garmin Connect App.

I can confirm that my current heart rate syncs, I can see Health Snapshots, steps and Stress ratios. But as soon as I want to look at the actual graph, it's empty. This seems unusual? I have had the device syncing with both Bluetooth and WiFi enabled but nothing will sync. I can see this data on the device no problem.