busy/free in calendar

C

CS

A user used to send meeting to a group of users, and
while setting up the meeting request, she can see each
uesr's calendar at that time if they are busy / not.
Currently,she can't, that period of time for all users
were blocked off ( including this user herslf as well).

I tried check many knowledge ffrom microsoft, can;t find
the answer. It did asked me to try click option , and
click "refresh busy/free information. but doesn't work.

It only happen for this user.

If you have any advise, please help.

Thanks,
CS
 
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