Calendar on Mobile App: Doesn't Show Steps on Last Day of Any Month

Did anyone notice that the calendar app doesn't show the step icon for achieving your step count on any last day of the month?

On February 29, I had 18,053 steps. I've had over 10,000 steps for over 110 days. Yet, in the calendar, no step goal icon appears on any last day of the month. My activity icon shows (green), but not my step icon (blue). (Screenshot for February and March included.) 

Any word on Garmin being aware of the issue? 

I have an Apple phone. My partner has an Android. He has the same error.