I face the same issue. I don’t think the app is crashing, but its a blank white screen for sure.
My best guess is that its an issue with component if there are 0 entries in the collection from which calendar component is fetching data. If there are no entries in that collection, whichever screen in your app is displaying the calendar component, it goes white. Once you have at least one entry then the component is displayed properly.
I tried to cross check by fetching data from the same collection via a simple list and calendar component on two separate screens to verify, and I could see that only when I added at least one entry manually the calendar was visible.
That’s my guess. @Colin & @ashley can verify how calendar works.