Hi suerama,
This was driving me crazy, too, but I found an answer. You’ll have to do some file editing. Follow this path on your WP installation:
wp-content >> plugins >> wp-fullcalendar >> includes >> js
The file you want to edit is main.js. Search for the following string:
if(!n.allDay&&B.isStart)
There should be only one occurrence in the file. Verify this before proceeding. Then delete:
n.allDay&&
so that the new string reads:
if(!B.isStart)
This solved the problem for me, and so far it hasn’t caused any problems.
For safety’s sake, I copied the main.js file to my local computer and then renamed the file on the server to main-old.js. I then edited the local file and copied it back to the server.
Hope this helps!