Calendar app accesses Exchange Calendar even though I said not to

Hi all,

I have the Sunrise app set to access by Google and Exchange calendars. I disabled access to these Calendars in the native Calendar app.

Whenever I get a calendar reminder or invite, Sunrise AND the native Calendar app both alert me. Even though Calendar app is set not to display both Calendars, somehow it still reminds me.

I have to open the native Calendar app, go to Calendars and uncheck the Exchange calender (Note; Only Exchange calendar shows up here, not Google)

Any ideas on how to stop the native Calendar app from accessing the Exchange Calendar?

Thanks.