There are multiple reasons why a user may not be able to see an event on his/her calendar.

1)  The employee may not be a member of the group that is designated to have access to the event (there are multiple employee roles; the user may not be a member of the necessary group, or the incorrect group could be selected).
2)  The employee may have un-selected the event category for that event.

Employees can select the categories that appear on their calendar using the following steps:
  1. Navigate to Faculty > Calendar.
  2. Expand the categories on the left side.
  3. Mark the checkbox next to each category that they would like to see on their calendar.