Discover Calendar Issues
Discover Calendars | Import calendar | From web. Copied a URL from another site and pasted it into the "Link to calendar" section. Added a title and hit Import. It failed because the URL had a bunch of whitespace at the beginning. It took me a few tries to realize this was what was going on.
After doing the above, I have now a successfully added a calendar, but the title is "<Title> (2)". I've tried renaming it to simply "<Title>", but that is failing to save.
Clicked "?" and clicked "Give feedback". No response. After at least a minute and several clicks, the Feedback pane appeared.