Calendar programs deselect my exchange account - syncs but doesn't show

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http://androidforums.com – On my Samsung ICS skyrocket, I have multiple calendars, three google calendars and an exchange account. The exchange account works fine for mail... but for the calendar, under the "calendars to show" setting, the Microsoft exchange account is deselected. It syncs fine and shows all the events when I select it... but when I come back to the calendar program later, it is deselected again. This is true in both the stock calendar and another calendar program that emulates jellybean. I don't get it! I can't find a setting that fixes it.. seems like a bug but I can't get around (General)