Delphi Tokyo FMX - TDateEdit does not change the displayed month

I am running Delphi 10.2 Tokyo with the April hotfix applied on Windows 10 (I don't have the Creator update installed). I notice strange behavior with the TDateEdit control:

Here's what the date looks like when first opened (showing the current date):

However, when I change the month or year using the left / right arrow or clicking on the month / year and selecting a new value, the month does not redraw and continues to show the month of June:

I have no event handlers when editing a date. I'm not sure what might be causing this. Any ideas that might be causing this behavior - or what can I do to fix it?

UPDATE 20170613: This seems to be a bug, I opened the ticket with Embarcadero: https://quality.embarcadero.com/browse/RSP-18348

UPDATE 20170816: A workaround was posted to https://quality.embarcadero.com/browse/RSP-18348 by Matt Davis, which seems to work for now (until Embarcadero issues the correct fix).