Office 365 calendar syncs some events, but not all of them

I have a user who is having some events not sync from her desktop Outlook to her iphone calendar.  We have her set up on the phone (as with all users) as an Exchange account.  Her mail works fine, but she does not get some events coming over to her calendar on her phone.  They just will not sync.

I thought that something might have gotten hung up, so I deleted the Exchange account on the phone, then went into the Exchange properties on the Admin portal of office 365, went into her mailbox exchange properties and deleted the link to the iphone in the mailbox features > ActiveSync details box.  After making sure the link was deleted, I recreated her account on the phone and everything came back, just as expected, BUT she still says some things still aren't syncing over.  Any help is greatly appreciated!
Josh ScovilleSystems AnalystAsked:
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You say some calendar events are not synchronizing to the phone, so I assume that some are?
Those that are not synchronizing, is she the chair or a participant?
Are those that are synchronizing repeating meetings?  If so, is it only some of the repeat dates that are not synchronizing or all of them?
If you open the calendar from OWA, do the events show there?
Josh ScovilleSystems AnalystAuthor Commented:
Problem seemed to fix itself.

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Josh ScovilleSystems AnalystAuthor Commented:
Problem went away on its own
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