Agenda View Display in IE11

The agenda view is not displaying properly for some users in IE11. Here is an example screenshot: https://tinyurl.com/owvjdr4

I have also applied the fix explained here to the calendar files (not sure if it is related): https://www.ads-software.com/support/topic/all-day-event-at-end-of-the-month-displays-on-the-following-month?replies=2

Any idea how to fix this so agenda view displays properly?

https://www.ads-software.com/plugins/all-in-one-event-calendar/