If you add a popup calendar control to a window it can go into an endless loop and become unusable when a user clicks the up or down arrows on the time spinner and doesn’t release the mouse button quick enough.
Steps to recreate bug:
[ul]Add Popup Calendar control to a window
Un-check “Show OK Button” in the component properties
Start preview mode
Click down arrow to open the calendar
Click the up or down arrow on the time spinner but don’t release the button right away
It appears to take less than 1 second before the endless loop starts.