Hi David!
Thanks for reaching out to us!
I could reproduce the issue you are having with your ICS file but not with any other ICS file. I checked the file for validation errors here > http://severinghaus.org/projects/icv/ and while it passes the validation, it does throw an error.
Doing a few more tests I realised there are a few events that have Start Time set as “All day” when previewing the import, and those events seem to be the issue here. If you select and import the rest of the events, it works without an issue.
I’m not entirely sure about the root cause of this, so I’ve logged a report and our dev team will have a look at it to see what they can find. I will keep you posted about it.
In the meantime, could you please let me know the source of this ICS file? Are you able to generate it again and see if you get the same issue? Let me know about this.
Thanks,
Victor