Finder window hangs when opened through any O365 office app


Hi Team.


We are experiencing a severe lag in response from the finder window when trying to open a file or save-as a file through an Office 365 app on Mac. 


Current Mac OS: Big Sur 11.2

Office 365 version: 16.45 (21011103)


This happens when we try to attach a file through an email attach command, or when opening a file in Excel or Word.


The finder window is simply unresponsive for about 2 minutes, then is periodically slow.  I haven't found any posts about this yet. 


Thanks, P


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