If you or another member is unable to see an event created in the shared calendar even though the creator of the event is sure that they have created the event, there could be two possibilities of the reason why the event is not view-able to other members.
The most common reason is that 1) the creator has created the event in a different calendar. The other is due to 2) a network error.
1. Event created in a different calendar
Please be careful to select the correct calendar when creating an event. Having multiple calendars or calendars with similar names may cause trouble when creating events to the correct calendars.
Also there is a chance that the creator of the event may have created the event in a different OS calendar while using 'my schedule'.
Please ask the creator of the event to check if the event was created in the correct shared calendar
2. Network Error
Temporary network errors may occur so that the created event would not be shared with other members of your shared calendar.
In this case, please re-login, followed by restarting your device. The issue should be resolved after doing so.
If the problem is still present after following the steps above, please contact us and let us know the 1) name of the shared calendar, 2) name of the event(s), 3) date(s) under the event(s).