Hi there David,
Thanks for getting in touch with us and sorry to hear about this issue 🙁
I just tried importing the feed in my local test and it’s working as expected. Can you please try again?
Not sure what happened but my guess is it might have been a temporary issue with the calendar URL, I’ve seen this a couple of times in the past.
If this is still not working, please try downloading the feed (right click and save as, on the feed link) and importing it as an ics file instead.
Please let me know if this helps,
Best,
Nico