Micah,
I see exactly what I was doing wrong. The first additional css code you sent does work. Thanks for your help!
I have added the additional css but this did not resolve the issue.
We have the same issue. We are not using Google or Outlook. Our ics feeds come from our Church Management software. Our website is: novationchurch.org and an example feed url is: webcal://novationchurch.ccbchurch.com/group_calendar.ics?id=1&tk=939102BA159F102DA8580019B9B51440
Please help. We rely heavily on this plug in. We have been using it for years and it’s all of the sudden broken.