Windows has a bug when it comes to the AppointmentStore API. Somehow the AppointmentManager gets into a bad state which fails to acknowledge new appointments, and fails to provide updated appointment information. This means when adding an appointment Ink Calendar has no way of getting that new appointment data back from Windows 10.

How does this affect you?

When adding appointments to Ink Calendar they will not refresh or show up even when restarting the app. Ideally this is the worst case, but in some cases this bug results in Ink Calendar crashing.

What is being done about this?

I have made a separate app to demonstrate the several bugs within the AppointmentManger API but Microsoft has failed to acknowledge these bugs. When submitting a crash report through the Feedback Hub when this issues was being demonstrated Microsoft dismissed the feedback and did not provide guidance or any updates.

A post has been made to the Microsoft Q&A website on how to best “refresh” the AppointmentManager to stop getting stale data, but no progress has been made there.

What will happen?

It is unclear if this bug will ever get the attention required to be fixed. In the mean time Ink Calendar should work and not crash, but will occasionally have old calendar data. I have experienced this bug on Windows 11 as well, so the fix is not on the horizon as far as I can tell. I will continue working to find a solution, but in the mean time feel free to reach out to Microsoft, file feedback, and let the company know how this bug is affecting you.

Thanks for sticking with Ink Calendar through this pain. And if you have a fix for this bug please reach out, support at inkcalendar dot com, comment below, or tweet at me TheJoeFin.

Joe