Hm, that is very strange. Just to clarify your situation a little further, are you:
(a) Trying to add the event first to a calendar (which doesn’t work), and then to a table (which does work),
or (b) Trying to add the event to a calendar in two different Skuid pages, and one calendar works, the other doesn’t?
or (c) something else, and I’m not getting your question right? 
If it is scenario (b), would you mind sharing the xml for the page that isn’t working?
