Hi Jason,
Thanks for reaching out!
It looks like this could be related to a timeout issue on the Event Aggregator server. I logged a ticket internally, and we are looking into this.
In the meantime, can you try exporting the calendar to a .ics file and then importing it into your site that way? Let me know if this works for you, and I will let you know as soon as I have an answer on the timeout issue. If it doesn’t work, could you please share the URL you’re using in a private reply? If you could also share your system info, that would be helpful as well.
If you haven’t already, you may also want to double check that you are using the private URL if the calendar is private.
Thanks,
Jennifer